| 223 Great Things About Sisters by Blue Mountain Arts Collection, Blue Mountain Press - 2009 - 72 pages |
| A clue in code by Marilyn Singer - 1993 - 52 pages |
| A comparative analysis of the intonation contours evidenced in early childhood by two sets of identical twins by Charlene Elizabeth Bruggemann - 1968 - 472 pages |
| A cross-cultural study of brother-sister avoidance by David W. McCurdy - 1959 - 200 pages |
| A Cup of Comfort Stories for Sisters by Colleen Sell - 2012 - 34 pages |
| A Double Life by Sarah Burton - 2003 - 445 pages |
| A role theory interpretation of the effects of birth order on conformity by Barry W. E. Bragg - 1968 - 276 pages |
| A study of the heredity of human twinning ... by William Walter Greulich - 1934 |
| About My Sisters by Debra Ginsberg - 2009 - 320 pages |
| Accidental Bond by Susan Merrell - 2011 - 303 pages |
| Accidental Bond by Susan Merrell - 1997 - 303 pages |
| Adult Sibling Rivalry by Jane Greer, Edward Myers - 1992 - 228 pages |
| Akka, dwarf of Syracuse by Agnes Carr Vaughan - 1940 - 216 pages |
| All about Twins by Gillian Leigh - 1983 - 253 pages |
| All Because I'm Older by Phyllis Reynolds Naylor - 1988 - 48 pages |
| Allie's apples by Helen Dunmore - 1997 - 55 pages |
| Almas Gemelas - El Amor Del Cielo Manifestado En La Tierra by Nina Llinares - 2004 - 200 pages |
| Almost There by William J. Milnazik - 2012 |
| Alone In the Mirror by Barbara Klein - 2012 - 190 pages |
| An inquiry into the effects of sibship size and birth order on education, occupation and earnings by Alexandra Wright - 1976 - 92 pages |
| Anxiety, affiliation, and social isolation by Alfred Parker MacDonald - 1968 - 156 pages |
| Becoming Brothers by Howard J. Waskow, Arthur I. Waskow, Arthur Ocean Waskow - 1993 - 218 pages |
| Best birthday party ever by Claire Jordan - 1999 - 55 pages |
| Between Sisters by Patrick Regan, Andrews McMeel Publishing, LLC - 2006 - 80 pages |
| Between sisters by Barbara Mathias - 1992 - 284 pages |
| Beyond Sibling Rivalry by Peter Goldenthal - 2000 - 256 pages |
| Big brother by Charlotte Zolotow - 1960 - 32 pages |
| Birth order by Cécile Ernst, Jules Angst - 1983 - 343 pages |
| Birth order and life roles by Lucille K. Forer - 1969 - 168 pages |
| Birth Order and Political Behavior by Albert Somit, Alan Arwine, Steven Ames Peterson - 1996 - 159 pages |
| Birth Order Roles & Sibling Patterns in Individual & Family Therapy by Margaret Howard Hoopes, James M. Harper - 1987 - 225 pages |
| Birth order roles & sibling patterns in individual & family therapy by Margaret Howard Hoopes, James M. Harper - 1987 - 225 pages |
| Birth order, parental interest, and academic achievement by Ernest J. Green - 1978 - 76 pages |
| Birth rank and personality by Nicholas Christopher Herrera, Stanford University. Dept. of Psychology - 2000 - 126 pages |
| Born in Union Station by Elmo Adams - 2010 - 128 pages |
| Born to Win by Kevin Leman - 2009 - 286 pages |
| Brothers by George Howe Colt - 2012 - 465 pages |
| Brothers & Sisters by Barbara L. Johnson - 1991 - 144 pages |
| Brothers & sisters by John Coyne - 1986 - 377 pages |
| Brothers & Sisters, Sisters & Brothers by Helene S. Arnstein - 1979 - 239 pages |
| Brothers & sisters--a special part of exceptional families by Thomas H. Powell, Peggy Ahrenhold Gallagher - 1985 - 226 pages |
| Brothers And Sisters by Gregory E. Lang - 2006 - 128 pages |
| Brothers and sisters by Karl König - 2004 - 92 pages |
| Brothers and sisters by Karl König - 1980 - 91 pages |
| Bunny Brown and his sister Sue on the rolling ocean by Laura Lee Hope - 1925 - 246 pages |
| Café After the Pub After the Funeral by Hattie Gordon - 2003 - 190 pages |
| Cain's Legacy by Jeanne Safer - 2012 - 275 pages |
| Chicken Soup for the Soul Celebrating Brothers and Sisters by Jack L. Canfield, Dahlynn McKowen, Mark Victor Hansen, Ken McKowen - 2007 - 265 pages |
| Children's sibling relationships by Frits Boer, Judy Dunn, Netherlands Organization for Postacademic Studies in the Social Sciences, Rijksuniversiteit te Leiden. Kinderpsychiatrisch Centrum Curium, Rijksuniversiteit te Leiden. Dept. of Child and Adolescent Psychiatry - 1992 - 165 pages |
| Children's Understanding of Their Sibling Relationships by Rosalind Edwards, Lucy Hadfield, Melanie L. Mauthner - 2005 - 72 pages |
| Confessions of an only child by Norma Klein - 1975 - 93 pages |
| Conjoined twins by Rowena Spencer - 2003 - 476 pages |
| Conjoined Twins by Rowena Spencer - 2003 - 476 pages |
| Contented House with Twins by Gina Ford, Alice B. Beer - 2006 - 218 pages |
| El Ventanal by Lemony Snicket - 2003 - 220 pages |
| Empathy and birth order by Ezra Stotland, Stanley E. Sherman, Kelly G. Shaver - 1971 - 197 pages |
| Empathy and Birth Order by Ezra Stotland, Stanley E. Sherman, Kelly G. Shaver - 1971 - 197 pages |
| Eve's own Eden by Karin Mutch - 1971 - 192 pages |
| Family constellation by Walter Toman - 1976 - 333 pages |
| Family constellation by Walter Toman - 1961 - 248 pages |
| Ferris wheel fun! by Rainey - 2004 |
| First child, second child ... your birth order profile by Bradford Wilson, George Edington - 1981 - 286 pages |
| Flim and Flam & the big cheese by Christian Garrison - 1976 - 32 pages |
| For Raymond by Pat Lingenfelter - 2007 - 200 pages |
| FRATRIE ET HANDICAP. by Régine Scelles - 1998 - 237 pages |
| FRATRIE ET HANDICAP. by Régine Scelles - 1998 - 237 pages |
| Freud's Blind Spot by Elisa Albert - 2010 - 288 pages |
| Gemini: the psychology & phenomena of twins by Judy W. Hagedorn, Janet W. Kizziar - 1974 - 138 pages |
| Having Twins -- And More by Elizabeth Noble, Leo Sorger, Louis G. Keith - 2003 - 560 pages |
| Heredity and environment by Robert Sessions Woodworth, Social Science Research Council (U.S.). Committee on Social Adjustment - 1941 - 95 pages |
| Heredity and environment by Robert Sessions Woodworth, Social Science Research Council (U.S.). Committee on Social Adjustment - 1941 - 95 pages |
| Heredity and environment by Robert Sessions Woodworth, Social Science Research Council (U.S.). Committee on Social Adjustment - 1941 - 95 pages |
| Heredity, Environment, & Personality by John C. Loehlin, Robert Cosby Nichols - 1976 - 202 pages |
| Heredity, environment, & personality by John C. Loehlin, Robert Cosby Nichols - 1976 - 202 pages |
| Hermanos Y Hermanas/ Sisters and Brothers by Marcel Rufo - 2007 - 252 pages |
| Honeymoon with My Brother by Franz Wisner - 2005 - 274 pages |
| How Twins Learn to Talk by Svenka Savić - 1980 - 195 pages |
| How twins learn to talk by Svenka Savić - 1980 - 195 pages |
| How twins learn to talk by Svenka Savić - 1980 - 195 pages |
| I fratelli amici by Francesca Mencacci - 1996 - 225 pages |
| I hate my brother Harry by Crescent Dragonwagon - 1983 - 32 pages |
| I'll share with you by Linda Apolzon - 1986 - 24 pages |
| I'm the Pretty One, You're the Smart One by Lorraine Bodger - 2006 - 144 pages |
| I'm the Pretty One, You're the Smart One by Bodger, Lorraine - 2006 - 140 pages |
| Identical Strangers by Elyse Schein, Paula Bernstein - 2007 - 270 pages |
| Identical Twins Reared Apart by Susan L. Farber - 1981 - 383 pages |
| Identity and intimacy in twins by Barbara Schave, Janet Ciriello - 1983 - 135 pages |
| In Praise and Celebration of Sisters by Helen Exley - 1998 - 96 pages |
| In the weather of the heart by Valerie Monroe - 1996 - 222 pages |
| Individual and environment by Niels Juel-Nielsen - 1980 - 462 pages |
| Indivisible By Two by Nancy L. Segal - 2005 - 280 pages |
| Indivisible by two by Nancy L. Segal - 2005 - 280 pages |
| Inheritance of craniofacial morphology by Sheldon S. Watnick, University of Michigan. School of Dentistry - 1969 - 54 pages |
| Inheritance of craniofacial morphology by Sheldon S. Watnick, University of Michigan. School of Dentistry - 1969 - 54 pages |
| Instanzen Im Schatten by Ulrike Lehmkuhl - 2006 - 175 pages |
| Issues in the intelligence debate by Denis Herbert Stott - 1983 - 55 pages |
| Issues in the intelligence debate by Denis Herbert Stott - 1983 - 55 pages |
| It takes two! by Mark Dubowski - 2000 - 60 pages |
| James the jaguar by Mary H. Lystad - 1972 - 30 pages |
| Jim Henson's muppets in The trouble with twins by Bonnie Worth - 1993 - 24 pages |
| Joel is the youngest by Judith Ish-Kishor - 1967 - 197 pages |
| Just like my sister by Katherine Del Monte, Max Benavidez, Laura Alvarez, Olga Villalba - 2002 - 18 pages |
| Karen and the red shoes by Samantha Bloomfield - 2001 - 16 pages |
| Khūkan nirandō̜n, Eng & Chang Bunker by ʻĀriyā Čhintaphānitchakān - 2003 - 312 pages |
| Kid brother by Jerrold Beim - 1952 - 46 pages |
| Kramer & Jack Make Choices! by Donald E. Sexauer - 2011 |
| L'etrange Destin D'Alfred Bessette Dit Frere Andre by Françoise Deroy-Pineau - 2004 - 153 pages |
| L'ère du double - 1998 - 107 pages |
| La fratrie méconnue by Brigitte Camdessus - 1998 - 189 pages |
| Leave Us Alone and Let Us Shine by Debbie Bell - 2010 - 68 pages |
| Linked for Life by Marvin D. Todd - 2001 - 225 pages |
| Little sisters - 1977 |
| Living Jonathan's Life by Scott M. Davis - 2005 - 260 pages |
| Living Without Your Twin by Betty Jean Case - 2001 - 154 pages |
| Lucky Child by Loung Ung - 2010 - 320 pages |
| Maude and Walter by Zibby Oneal, Maxie Chambliss - 1985 - 28 pages |
| Memoirs of a Monarch by Doris F. Tulcin, Erica Kates - 2008 - 120 pages |
| Millie-Christine by Joanne Martell - 2000 - 294 pages |
| Mom loved you best! by William E. Hapworth, Mada Hapworth, Joan Rattner Heilman - 1993 - 242 pages |
| Mom Loves Me Best by Linda Sunshine - 2006 - 151 pages |
| Mom Still Likes You Best by Jane Isay - 2011 - 178 pages |
| Mom Still Likes You Best by Jane Isay - 2011 - 178 pages |
| Mom Still Likes You Best by Jane Isay - 2010 - 178 pages |
| Moments for Sisters by Robert Strand - 1996 - 80 pages |
| Muddled middle sister me! by Dee Lillegard - 1997 - 16 pages |
| My brother never feeds the cat by Reynold Ruffins - 1979 - 32 pages |
| My Brother Peter by Nomi Berger - 1998 - 256 pages |
| My Brother Peter by Nomi Berger - 1998 - 256 pages |
| My name is Emily by Morse Hamilton, Emily Hamilton, Jenni Oliver - 1979 - 32 pages |
| My new sister, the bully by Deanne Durrett - 1985 - 125 pages |
| My Sister by Liesl Vazquez - 1996 - 64 pages |
| My Sister Is Missing by Sherrie Gladden-Davis, Brad Crawford - 2005 - 301 pages |
| My Sister, My Friend by Joan Walsh Anglund - 2004 - 48 pages |
| My Sister, My Self by Vikki Stark - 2006 - 224 pages |
| My Sister, My Self by Vikki Stark - 2006 - 224 pages |
| Next of Kin by Marianne Langner Zeitlin - 1991 - 188 pages |
| No Friend Like a Sister by Barbara Alpont - 1997 - 240 pages |
| Not All Twins Are Alike by Barbara Schave Klein - 2003 - 133 pages |
| One of Us by Alice Domurat Dreger - 2004 - 198 pages |
| Our mammoth by Adrian Mitchell - 1987 - 26 pages |
| Our New Baby by Jane Hamilton-Merritt - 1982 - 28 pages |
| Parallels by Harvey Stein, Ted Wolner - 1978 - 148 pages |
| Pathology of Multiple Pregnancy by Virginia J. Baldwin - 1994 - 409 pages |
| Paw and order by Jenny Dale - 2001 - 99 pages |
| Penguin's big surprise by Susie Jenkin-Pearce, Tina Macnaughton - 2007 |
| Personality Differences and Biological Variations by Gordon Claridge, Sandra Canter, Wilfrid I. Hume - 1973 - 175 pages |
| Personality differences and biological variations: a study of twins by Gordon Claridge, Sandra Canter, Wilfrid I. Hume - 1973 - 175 pages |
| Power of the Powerless by Christopher De Vinck, Fred Rogers - 1988 - 151 pages |
| Practical Concerns About Siblings by Frances Fuchs Schacter, Richard K. Stone - 1987 - 211 pages |
| Preventing Sibling Rivalry by Sybil Hart - 2001 - 207 pages |
| Psyche's sisters by Christine Downing - 1990 - 186 pages |
| Psyche's sisters by Christine Downing - 1988 - 186 pages |
| Psychological Profiles of Conjoined Twins by J. David Smith - 1988 - 147 pages |
| Raised by Wolves by Kirk Felix, Keith Felix - 2012 - 276 pages |
| Raised by Wolves by Kirk Felix, Keith Felix - 2012 - 276 pages |
| Real Sisters Never Grow Up by V. C. Graham - 2006 |
| Relative Stranger by Mary Loudon - 2007 - 352 pages |
| Riding the Bus with My Sister by Rachel Simon - 2002 - 304 pages |
| Ring around San Francisco by Barbara J. Raport Stoff - 1978 - 43 pages |
| Rowland by Caroline Whitehead - 2011 - 216 pages |
| Separate lives by Judy Dunn, Robert Plomin - 1990 - 210 pages |
| Separate Social Worlds of Siblings by Eileen Mavis Hetherington, David Reiss, Robert Plomin - 1994 - 232 pages |
| Separated angels by Larry Fanning - 1995 - 199 pages |
| Sibling Bond by Stephen P. Bank, Michael D. Kahn - 1983 - 363 pages |
| Sibling Development by Jonathan Caspi - 2011 - 398 pages |
| Sibling Identity and Relationships by Rosalind Edwards, Lucy Hadfield, Helen Lucey, Melanie Mauthner - 2006 - 144 pages |
| Sibling interaction across cultures by Patricia Goldring Zukow - 1989 - 207 pages |
| Sibling loss by Joanna H. Fanos - 1996 - 182 pages |
| Sibling relations and gender in the early modern world by Naomi J. Miller, Naomi Yavneh - 2006 - 238 pages |
| Sibling relationships by Gene H. Brody - 1995 - 263 pages |
| Sibling relationships by Gene H. Brody - 1995 - 263 pages |
| Sibling Relationships by Michael E. Lamb - 1982 - 401 pages |
| Sibling Relationships by Michael E. Lamb - 1982 - 401 pages |
| Sibling Relationships in Childhood and Adolescence by Avidan Milevsky - 2011 - 152 pages |
| Sibling Relationships in Childhood and Adolescence by Avidan Milevsky - 2011 - 152 pages |
| Sibling Rivalry by Vera Rabie-Azoory - 1995 - 224 pages |
| Siblings in Development by Vivienne Lewin, Belinda Sharp - 2009 - 184 pages |
| Siblings of the mentally ill by Wendy Carlisle - 1984 - 190 pages |
| Siblings Without Rivalry: How to Help Your Children Live Together So You Can Live Too by Adele Faber, Elaine Mazlish - 2012 - 256 pages |
| Significant sisters by Margaret Forster - 1984 - 351 pages |
| Sis by Mary Downer Evans, Martha Downer Waterman - 2000 - 128 pages |
| Sister Knot by T. E. Apter - 2007 - 308 pages |
| Sister Sets by Emily Gwathmey, Ellen Stock Stern - 1997 - 104 pages |
| Sister, sister, sister: Getting along at Full House by Jan Berenson, Jodie Sweetin, Candace Cameron, Ashley Olsen, Mary-Kate Olsen - 1995 - 48 pages |
| Sister, You Have a Special Place in My Heart by Blue Mountain Arts - 2002 - 48 pages |
| Sisters by Gregory E. Lang, Janet Lankford-Moran - 2008 - 128 pages |
| Sisters by Claudine Gandolfi - 2008 |
| Sisters by Susan K. Hom - 2007 - 95 pages |
| Sisters by Publications International, Limited - 2005 - 64 pages |
| Sisters by Carol Saline, Sharon J. Wohlmuth - 2005 - 164 pages |
| Sisters by Carol Saline, Sharon J. Wohlmuth - 2004 - 159 pages |
| Sisters by Carol Saline, Sharon J. Wohlmuth - 2004 - 164 pages |
| Sisters - 2003 - 85 pages |
| Sisters by DaySpring Cards - 2001 - 366 pages |
| Sisters by Gail Cohen - 2001 - 126 pages |
| Sisters by Carol Saline, Sharon J Wohlmuth - 1998 - 136 pages |
| Sisters by Elizabeth Fishel - 1997 - 287 pages |
| Sisters by Carol Saline, Sharon J. Wohlmuth - 1997 - 136 pages |
| Sisters by Barbara Briggs Morrow - 1997 - 71 pages |
| Sisters by Elizabeth Fishel - 1997 - 287 pages |
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