Heredity and social fitness ; a study of differential mating in a Pennsylvania family /

Bibliographic Details

Main Author:	Key, Wilhelmine Marie Euteman, 1872-
Format:	Book
Language:	English
Published:	Washington : The Carnegie institution of Washington, 1920.
Series:	Carnegie institution of Washington. Publication, no.296
Subjects:	Heredity. Eugenics. Genetics, Medical.