Columbia subject headings:
Mexicans--United States--Social conditions.
Mexico--Emigration and immigration--Social aspects.
Michoacán de Ocampo (Mexico)--Emigration and immigration--Social aspects.
Harvard subject headings:
Princeton subject headings:
Mexico, North--Economic conditions--21st century--Congresses.
Mexico--Emigration and immigration--Congresses.
Migration, Internal--Mexico--Congresses.
Migration, Internal--Mexico--Michoacán de Ocampo--Congresses.
United States--Emigration and immigration--Congresses.