Columbia subject headings:
Family size--Mexico.
Fertility, Human--Mexico.
Mexico--Rural conditions.
Harvard subject headings:
Birth control--Mexico
Fertility, Human--Mexico--Baviácora.
Mexico--Social conditions
Sonora (Mexico : State)--Economic conditions.
Sonora (Mexico : State)--Social conditions.
Women--Mexico--Economic conditions.
Princeton subject headings:
Bariácora (Mexico)--Population.
Fertility, Human--Economic aspects--Mexico--Bariácora.