Columbia subject headings:
Cairns--Niger.
Excavations (Archaeology)--Niger.
Funeral rites and ceremonies, Ancient--Niger.
Funeral rites and ceremonies, Ancient--Sahara.
Niger--Antiquities.
Niger--Civilization.
Sepulchral monuments--Niger.
Harvard subject headings:
Burial--Niger.
Cairns--Niger.
Excavations (Archaeology)--Niger.
Funeral rites and ceremonies, Ancient--Niger.
Funeral rites and ceremonies, Ancient--Sahara.
Human remains (Archaeology)--Niger.
Niger--Antiquities.
Niger--Civilization.
Sepulchral monuments--Niger.
Tombs--Niger.
Princeton subject headings:
Excavations (Archaeology)--Sahara.
Funeral rites and ceremonies--Sahara.
Sahara--Antiquities.
Tombs--Sahara.