Eckholm, Erik P. <br/><br/>
Down to earth :   environment and human needs  
/ by Erik P. Eckholm.  
 - New York :   Norton,   1982. 
 - xv, 238 p. ;   22 cm. 
<br/><br/><label>ISBN: </label>0393016005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology; Environmental protection.
<br/><br/><label>Dewey Class. No.: </label>363.9 ECK