Twins
Jumeaux
Conjoined twins
Photography of twins
Multiple birth
twins
Gemelos
kaksoset
Lone twins
Siblings
Diseases in twins
Identical twins
Alexander, Terry Pink Make room for twins
Andō, Jukō, 1958- "Kokoro wa iden suru" to dōshite ieru no ka
Boklage, Charles E. How new humans are made
Breastfeeding twins, triplets, and quadruplets
Bruder, Robert, 1872- Beitrag zur lehre von den zwillingen ..
Bryan, Elizabeth M. Twins, triplets, and more
Bulmer, M. G. The biology of twinning in man
Case, Betty Jean We are twins but who am I?
Chishty-Mujahid, Nadya Fraternal male twinship in history, society, fiction, and entertainment
Collier, Herbert L. The psychology of twins
Davis, Edith Atwood, 1890- The development of linguistic skill in twins, singletons with siblings, and only children from age five to ten years
Diaz, Natalie, 1976- The newborn twins sleep guide
Diaz, Natalie, 1976- What to do when you're having two
Diskin, Saul, 1934- The end of the twins
Eckle, Christian Erbcharakterologische Zwillingsuntersuchungen
Economic returns to Communist Party membership
Felson, Jacob What can we learn from the study of twins?
Friedrich, Elizabeth The parents' guide to raising twins
Gaddis, Vincent H. The curious world of twins
Gottesman, Karen, 1961- Raising twins after the first year
Gromada, Karen Kerkhoff Mothering multiples
Hamard-Frichet, Colette Enfance de jumeaux
Helguera, Hilario, 1869- Gemelos monozigóticos
Joseph, Jay The trouble with twin studies
Juel-Nielsen, Niels Individual and environment
Kringlen, Einar Heredity and environment in the functional psychoses
Lange, Johannes, 1891-1938 Crime as destiny
Luke, Barbara When you're expecting twins, triplets, or quads
Merriman, Curtis, 1875- The intellectual resemblance of twins--
Mukhina, Valerii︠a︡ Sergeevna Tainstvo detstva
Novotny, Pamela Patrick The joy of twins
Novotny, Pamela Patrick The joy of twins and other multiple births
Osborne, Richard H. (Richard Hazelet) Genetic basis of morphological variation
Quigley, Jenny Minton, 1971- The early birds
Research reports from the Center for Study of Multiple Birth
Segal, Nancy L., 1951- Twin mythconceptions
Stewart, Elizabeth A., 1942- Exploring twins
Stolzenburg, U. (Ursula) Leistungsvermögen von Zwillingsmüttern und Zwillingen beim Rind
Theroux, Rosemary T., 1949- The care of twin children
Thorndike, Edward L. (Edward Lee), 1874-1949 Measurements of twins
Twins' Mothers Club of Bergen County, N.J. And then there were two
Twins' Mothers' Club of Westchester Twins in infancy and as toddlers
West, Marion B. Two of everything but me