Columbia subject headings:
Agriculture and state--Mexico.
Food supply--Developing countries.
Food supply--Mexico.
Mexico--Rural conditions.
Nutrition--Developing countries.
Harvard subject headings:
Agriculture and state--Mexico.
Food supply--Developing countries
Food supply--Mexico
Mexico--Rural conditions.
Nutrition--Developing countries
Princeton subject headings:
Agriculture and state--Mexico.
Food supply--Developing countries.
Food supply--Mexico.
Mexico--Rural conditions.
Nutrition--Developing countries.