Columbia subject headings:
Colombia--Economic conditions--1918-
Colombia--Politics and government--1946-
Colombia--Social conditions.
Violence--Colombia.
Harvard subject headings:
Colombia--Economic conditions--1918-
Colombia--Politics and government--1946-
Colombia--Social conditions.
Violence--Colombia
Princeton subject headings:
Colombia--Economic conditions--1918-
Colombia--Politics and government--1946-1974.
Colombia--Social conditions.
Violence--Colombia.