Columbia subject headings:
Hominids--South Africa--Congresses.
Paleoclimatology--South Africa--Congresses.
Tobias, Phillip V.--Congresses.
Harvard subject headings:
Africa, Sub-Saharan--Antiquities--Congresses.
Antiquities, Prehistoric--Africa, Sub-Saharan--Congresses.
Hominids--South Africa--Congresses.
Human beings--Origin--Congresses.
Human evolution--Congresses.
Paleoanthropology--Africa, Sub-Saharan--Congresses.
Paleoclimatology--South Africa--Congresses.
Tobias, Phillip V.--Congresses.
Tools, Prehistoric--Congresses.
Princeton subject headings:
Hominids--South Africa.
Paleoclimatology--South Africa.