Ehrlich, Paul R. & Ehrlich, Anne H. <br/><br/>
Population Resources Environment: Issues in Human Ecology 
By Paul R. Ehrlich & Anne H. Ehrlich 
 - San Francisco  W.H. Freeman Company Macmillan Publishing  1979 
 - 383 pages, 26 cm. 
<br/><br/> includes appendix, bibliographic references and index 
<br/><br/><label>ISBN: </label>0-02-424820-7 
<br/><br/><label>Dewey Class. No.: </label>301.3 Eh8 c2