Primitive worlds: people lost in time. 
Prepared by the Special Publications Division, National Geographic Society. 
 - [Washington,  National Geographic Society,  1973] 
 - 211 p.  col. illus.  27 cm. 
<br/><br/>Bibliography: p. 210. 
<br/><br/><label>ISBN: </label>870441272 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ethnology.;Indigenous peoples.
<br/><br/><label>Universal Decimal Class. No.: </label>301.7