Ehrlich, Paul R. <br/><br/>
Ecoscience :  population, resources, environment / 
(by) Paul R. Ehrlich, Anne H.Ehrlich, John P.Holdren 
 - 3rd ed. 
 - San Francisco :  W.H.Freeman,  1977 
 - 1051 leaves :  ill. ;  32 cm. 
<br/><br/> First-2nd ed. published under title:Population, resources, environment  Includes bibliographies and indexes  Photocopy 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0716705672 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population<br/>Pollution<br/>Human ecology