Columbia subject headings:
Central America--Foreign relations--Mexico--History--20th century.
Central America--History--1979-
Mexico--Foreign relations--Central America--History--20th century.
Revolutions--Central America--History--20th century.
Harvard subject headings:
Central America--Emigration and immigration.
Central America--Foreign relations--Mexico--History--20th century.
Central America--History--1951-1979.
Central America--History--1979-
Mexico--Emigration and immigration.
Mexico--Foreign relations--Central America--History--20th century.
Political violence--Central America--History--20th century.
Revolutions--Central America--History--20th century.
Princeton subject headings:
Central America--Foreign relations--Mexico--History--20th century.
Central America--History--1951-1979.
Central America--History--1979-
Mexico--Foreign relations--Central America--History--20th century.
Political violence--Central America--History--20th century.
Revolutions--Central America--History--20th century.