Columbia subject headings:
Michoacán de Ocampo (Mexico)--Emigration and immigration--Case studies.
Rural-urban migration--Mexico--Michoacán de Ocampo--Case studies.
United States--Emigration and immigration--Case studies.
Harvard subject headings:
Michoacán de Ocampo (Mexico)--Emigration and immigration--Case studies.
Rural-urban migration--Mexico--Michoacán de Ocampo--Case studies.
United States--Emigration and immigration--Case studies.
Princeton subject headings:
Michoacán de Ocampo (Mexico)--Emigration and immigration--Case studies.
Rural-urban migration--Mexico--Michoacán de Ocampo--Case studies.
United States--Emigration and immigration--Case studies.