Columbia subject headings:
Latin America--Foreign relations--1948-1980.
Pan-Americanism.
Harvard subject headings:
Heads of state--Latin America--Congresses.
Latin America--Foreign relations--1948-
Latin America--Foreign relations--1980-
Pan-Americanism.
Rio Group.
Rio Group. Reunión de Presidentes (1987 : Acapulco, Mexico)
Summit meetings--Mexico--Acapulco.
Princeton subject headings: