Columbia subject headings:
Harvard subject headings:
Chad--Politics and government--1960-1990
Chad--Politics and government--1990-
Medella Youssouf, Moussa.
Political parties--Chad.
Revolutionaries--Chad.
Princeton subject headings:
Chad--Politics and government--1960-1990.
Chad--Politics and government--1990-
Medella Youssouf, Moussa.