Columbia subject headings:
Chad--Antiquities.
Excavations (Archaeology)--Chad.
Excavations (Archaeology)--Tibesti Mountains Region.
Prehistoric peoples--Chad.
Prehistoric peoples--Tibesti Mountains Region.
Tibesti Mountains Region--Antiquities.
Tombs--Chad.
Tombs--Tibesti Mountains Region.
Harvard subject headings:
Chad--Antiquities
Excavations (Archaeology)--Chad
Excavations (Archaeology)--Tibesti Mountains Region.
Mounds--Chad.
Prehistoric peoples--Chad.
Prehistoric peoples--Tibesti Mountains Region.
Tibesti Mountains Region--Antiquities.
Tombs--Chad.
Tombs--Tibesti Mountains Region.
Princeton subject headings: