Columbia subject headings:
Chad--Politics and government--1960-1990.
Political violence--Chad--History.
Harvard subject headings:
Chad--History--Civil War, 1965-
Chad--Politics and government--1960-
Chad--Politics and government--1960-1990
Princeton subject headings:
Case studies.
Chad--History--Civil War, 1965---Participation, French.
Chad--History--Civil War, 1965---Participation, Libyan.
Chad--Politics and government.
Political violence--Case studies.
Political violence--Chad--History.