General History of Africa.I :  Methodology and African Prehistory 
edited by J.Ki-Zerbo 
 - Paris :   Unesco   1981. 
 - 819 p. 
 - Unesco General History Of Africa  Vol 1 .
<br/><br/><br/>Eng 
<br/><br/><label>LC Class. No.: </label>DT20 GEN 1981