Columbia subject headings:
Harvard subject headings:
Chihuahua (Mexico : State)--Economic conditions.
Chihuahua (Mexico : State)--Population density.
Chihuahua (Mexico : State)--Social conditions.
Migration, Internal--Mexico--Chihuahua (State)
Regional planning districts--Mexico--Chihuahua (State)
Princeton subject headings:
Chihuahua (Mexico : State)--Economic conditions.
Chihuahua (Mexico : State)--Population--Statistics.
Chihuahua (Mexico : State)--Social conditions.
Mexico--Population policy.
Migration, Internal--Mexico--Chihuahua (State).
Population density--Mexico--Chihuahua (State).
Regional planning districts--Mexico--Chihuahua (State).