Columbia subject headings:
Harvard subject headings:
Africa, Southern--Antiquities--Congresses.
Antiquities, Prehistoric--Africa, Southern--Congresses.
Prehistoric peoples--Africa, Southern--Congresses.
Princeton subject headings:
Africa, Southern--Antiquities--Congresses.
Excavations (Archaeology)--Africa, Southern--Congresses.
Prehistoric peoples--Africa, Southern--Congresses.
Stone age--Africa, Southern--Congresses.