Clark, Grahame. <br/><br/>
Prehistoric societies / 
Grahame Clark and Stuart Piggott. 
 - Harmondsworth, England :  Penguin Books,  c1970. 
 - 352 p., [8] p. of pl. :  ill., maps ;  17 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prehistoric peoples.