Columbia subject headings:
Mexican-American Border Region--Emigration and immigration--Social aspects.
Mexican-American Border Region--Ethnic relations--Political aspects.
Mexican-American Border Region--Political aspects.
Mexican-American Border Region--Social aspects.
Mexico--Boundaries--United States.
United States--Boundaries--Mexico.
Harvard subject headings:
Princeton subject headings:
Mexican-American Border Region--Emigration and immigration--Social aspects.
Mexican-American Border Region--Ethnic relations--Political aspects.
Mexican-American Border Region--Political aspects.
Mexican-American Border Region--Social aspects.
Mexico--Boundaries--United States.
United States--Boundaries--Mexico.