Columbia subject headings:
Harvard subject headings:
Africa, Sub-Saharan--Antiquities--Congresses.
Fossil hominids--Africa, Sub-Saharan--Congresses.
Hominids--Congresses.
Princeton subject headings:
Africa, Sub-Saharan--Antiquities--Congresses.
Fossil hominids--Africa, Sub-Saharan--Congresses.
Hominids--Congresses.