Columbia subject headings:
Fertility, Human--United States.
United States--Economic conditions--1945-
United States--Population.
United States--Social conditions--1945-
Harvard subject headings:
Fertility, Human--United States
United States--Economic conditions--1945-
United States--Population.
United States--Social conditions--1945-
Princeton subject headings:
Fertility, Human--United States.
United States--Economic conditions--1945-
United States--Population.
United States--Social conditions--1945-