Columbia subject headings:
Harvard subject headings:
Chile--Politics and government--1920-1970--Congresses.
Chile--Social conditions--Congresses.
Colombia--Politics and government--1946---Congresses.
Colombia--Social conditions--Congresses.
Princeton subject headings:
Chile--Politics and government--1920---Congresses.
Chile--Social conditions--Congresses.
Colombia--Politics and government--1946---Congresses.
Colombia--Social conditions--Congresses.