Columbia subject headings:
Harvard subject headings:
Cadereyta (Querétaro, Mexico)--Emigration and immigration.
Migration, Internal--Mexico--Querétaro (State)
Querétaro (Mexico : State)--Emigration and immigration.
Princeton subject headings:
Cadereyta (Querétaro, Mexico)--Emigration and immigration.
Jalpan de Serra (Mexico)--Emigration and immigration.
Migration, Internal--Mexico--Querétaro (State).
Querétaro (Mexico : State)--Emigration and immigration.
Querétaro (Mexico : State)--Social conditions--20th century.
United States--Emigration and immigration.