Enger, Eldon D. <br/><br/>
Environmental science :  a study of interrelationships / 
Eldon D. Enger and Bradley F. Smith. 
 - 7th ed. 
 - Boston :  McGraw-Hill,  c2000. 
 - xxi, 434 papes :  illustrations ;  28 cm.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0072304952 (hardcover) 0072909080 (softcover) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.<br/>Ecology.<br/>Environmental policy.
<br/><br/><label>Dewey Class. No.: </label>363.7 ENG