Columbia subject headings:
Excavations (Archaeology)--Sahara.
Prehistoric peoples--Sahara.
Harvard subject headings:
Excavations (Archaeology)--Sahara.
Neolithic period--Sahara.
Paleobotany--Holocene
Paleobotany--Sahara.
Paleoecology--Sahara.
Plant ecology--Sahara--History.
Playas--Sahara.
Sahara--Antiquities.
Princeton subject headings: