Columbia subject headings:
Islam and state--Chad.
Islam--Chad--Societies, etc.
Muslims--Chad--Ethnic identity.
Harvard subject headings:
Islam and state--Chad.
Islam--Chad.--Societies, etc.
Muslims--Chad.--Ethnic identity.
Muslims--Chad.--Social conditions.
Muslims--Chad.--Societies, etc.
Princeton subject headings:
Islam and state--Chad.
Islam--Chad--Societies, etc.
Muslims--Chad--Ethnic identity.