Columbia subject headings:
International organization--Congresses.
Latin America--Foreign relations--Congresses.
Latin American federation--Congresses.
Peru--Foreign relations--1968-1980--Congresses.
Harvard subject headings:
International organization--Congresses
Latin America--Foreign relations--1948---Congresses.
Latin America--Foreign relations--Congresses.
Latin American federation--Congresses.
Peru--Foreign relations--1968---Congresses.
Peru--Foreign relations--Congresses.
Princeton subject headings: