Twins :
Newman, Horatio Hackett, 1875-,
Twins : A study of heredity and environment / By horatio h. Newman, Frank n. Freeman and Karl j. holzinger. - 369 páginas
Gemelos
Herencia
Seres humanos--Efectos ambientales
GN295.T9 / N47
Twins : A study of heredity and environment / By horatio h. Newman, Frank n. Freeman and Karl j. holzinger. - 369 páginas
Gemelos
Herencia
Seres humanos--Efectos ambientales
GN295.T9 / N47