Columbia subject headings:
Ethiopia--History--Revolution, 1974--Sources.
Ethiopia--History--Revolution, 1974.
Ethiopia--Politics and government--1974-1991--Sources.
Ethiopia--Politics and government--1974-1991.
Harvard subject headings:
Ethiopia--History--Revolution, 1974--Sources.
Ethiopia--History--Revolution, 1974.
Ethiopia--Politics and government--1974-1991--Sources.
Ethiopia--Politics and government--1974-1991.
Princeton subject headings:
Ethiopia--History--Revolution, 1974.