Clark, J. D. (1970). The Prehistory of Africa. Praeger.
Chicago-čujuhus (17. p.)Clark, J. Desmond. The Prehistory of Africa. New York: Praeger, 1970.
MLA-čujuhus (9. p.)Clark, J. Desmond. The Prehistory of Africa. Praeger, 1970.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.