Fragile heritage : a rock art field guide

von Lewis-Williams, J. David
Johannesburg : Witwatersrand University Press, 1998.
Umfang/Format: VII, 224 S.: zahlr. Ill. u. Farbtaf.

Origins : the story of the emergence of humans and humanity in Africa

Cape Town : Double Storey, 2006.
Umfang/Format: 168 p. : ill. (mostly col.), maps ; 23 cm.