Living on the earth 

 - 1st ed. 
 - Washington, D.C. :  National Geographic Society,  c1988. 
 - 320 p. :  col. ill. ;  28 cm. 
<br/><br/>Bibliography: p. 315. 
<br/><br/>
<br/><br/><label>ISBN: </label>0870447343 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.<br/>Human geography.
<br/><br/><label>Dewey Class. No.: </label>Cir 550 N21 1988