Who should have childrenn An environmental and genetic approach.

Xehetasun bibliografikoak
Egile nagusia:	Ingle, Dwight Joyce 1907-
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	Indianapolis Bobbs-Merrill c1973.
Gaiak:	Eugenics. Population control. Population growth. United States > Population. United States > Social conditions.