Columbia subject headings:
Ecology--Mexico.
Human ecology--Mexico.
Harvard subject headings:
Economic anthropology--Mexico--Veracruz (State)
Human ecology--Mexico--Veracruz (State)
Political anthropology--Mexico--Veracruz (State)
Veracruz-Llave (Mexico : State)--Economic conditions.
Veracruz-Llave (Mexico : State)--Politics and government.
Princeton subject headings: