Columbia subject headings:
Colombia--Economic conditions--1970---Periodicals.
Colombia--Politics and government--1974---Periodicals.
Colombia--Social conditions--Periodicals.
Harvard subject headings:
Colombia--Economic conditions--1970---Periodicals.
Colombia--Politics and government--1974---Periodicals.
Colombia--Social conditions--Periodicals.
Princeton subject headings:
Colombia--Economic conditions--1970---Periodicals.
Colombia--Politics and government--1974---Periodicals.
Colombia--Social conditions--Periodicals.