Columbia subject headings:
Harvard subject headings:
Central America--Politics and government--1951-
Central America--Politics and government--1951-1979.
Central America--Politics and government--1979-
Elections--Central America.
Voting--Central America.
Princeton subject headings:
Central America--Politics and government--1951-1979.
Central America--Politics and government--1979-
Elections--Central America.
Voting--Central America.