Boyd, Robert. <br/><br/>
How humans evolved   
by Robert Boyd and Joan B Silk 
 - New York  W.W. Norton & Co.  1997 
 - xxiv, 674p. 
<br/><br/><label>ISBN: </label>0393970760 
<br/><br/><label>Dewey Class. No.: </label>599.9  / N97