Ehrlich, Anne H. <br/><br/>
Ecoscience  :population resources, environment 
Anne H. Ehrlich 
 - Fransisco  W.H. Freeman and Company  1977 
 - xv,1051p.  ill.  24cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0716700298 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population<br/>Pollution, <br/>Human ecology
<br/><br/><label>LC Class. No.: </label>IRA HB871.E35