Columbia subject headings:
Harvard subject headings:
Central America--Politics and government--1979-
Communism--Central America.
El Salvador--Politics and government--1979-1992.
Guerrillas--Central America.
Princeton subject headings:
Central America--Politics and government--1979-
Communism--Central America.
El Salvador--Politics and government--1979-1992.
Guerrillas--Central America.