Columbia subject headings:
Nicaragua--History--Revolution, 1979--Causes.
Nicaragua--Politics and government--1937-1979.
Nicaragua--Politics and government--1979-1990.
Harvard subject headings:
Nicaragua--History--Revolution, 1979--Causes.
Nicaragua--Politics and government--1937-1979.
Nicaragua--Politics and government--1979-1990.
Princeton subject headings:
Nicaragua--History--Revolution, 1979--Causes.
Nicaragua--Politics and government--1937-1979.
Nicaragua--Politics and government--1979-1990.