McBurney, C. B. M., & Hey, R. W. (1955). Prehistory and Pleistocene geology in Cyrenaican Libya: A record of two seasons' geological and archaeological fieldwork in the Gebel Akhdar hills, with a summary of prehistoric finds from neighbouring territories. University Press.

McBurney, C. B. M., and Richard William Hey. Prehistory and Pleistocene Geology in Cyrenaican Libya: A Record of Two Seasons' Geological and Archaeological Fieldwork in the Gebel Akhdar Hills, with a Summary of Prehistoric Finds from Neighbouring Territories. Cambridge [England]: University Press, 1955.

McBurney, C. B. M., and Richard William Hey. Prehistory and Pleistocene Geology in Cyrenaican Libya: A Record of Two Seasons' Geological and Archaeological Fieldwork in the Gebel Akhdar Hills, with a Summary of Prehistoric Finds from Neighbouring Territories. University Press, 1955.