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