edited by Meave G. Leakey and Richard E. Leakey
Clarendon Press , Oxford University Press
1978
Koobi Fora, researches into geology, palaeontology, and human origins
. Koobi Fora research project ; v. 1 , International Louis Leakey Memorial Institute for African Prehistory series
monograph no. 1
Available at 16 libraries