The human dawn / 
by the editors of Time-Life Books. 
 - Amsterdam :  Time-Life Books,  1991. 
 - 176 p. :  ill. ;  28 cm. 
<br/><br/>p. 168-170. 
<br/><br/><label>ISBN: </label>0705409899 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human evolution.