[1] International Scientific Committee for the drafting of a General History of Africa and R. Bayle des Hermens and F. Noten, "The Prehistory of Central Africa ," 1980.

International Scientific Committee for the drafting of a General History of Africa and Bayle des Hermens, R. de and Noten, F. van, "The Prehistory of Central Africa ," 1980.

International Scientific Committee for the drafting of a General History of Africa, Bayle des Hermens, R., Noten, F., (1980). "The Prehistory of Central Africa,"

International Scientific Committee for the drafting of a General History of Africa, Bayle des Hermens, R. de, Noten, F. van. (1980). "The Prehistory of Central Africa,"