Columbia subject headings:
Harvard subject headings:
Environmental protection--Latin America--Congresses.
Latin America--Economic integration--Congresses.
Latin America--Economic policy--Congresses
Latin America--Politics and government--20th century--Congresses.
Latin America--Social policy--Congresses.
Princeton subject headings:
Latin America--Economic integration--Congresses.
Latin America--Economic policy--Congresses.
Latin America--Politics and government--20th century--Congresses.
Latin America--Social policy--Congresses.