Human ancestors :  readings from Scientific American / 
compiled by and with an introd. by Glynn Isaac, Richard E. F. Leakey. 
 - San Francisco :  W. H. Freeman,  1979. 
 - vi, 130 p. :  ill. ;  29 cm. 
<br/><br/>Includes bibliographical references (p. 125 -126) and index. 
<br/><br/><label>ISBN: </label>0716711001 071671101Xpbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human evolution--Addresses, essays, lectures.<br/>Paleolithic period--Addresses, essays, lectures.