Enger, Eldon D. <br/><br/>
Environmental science :  a study of interrelationships. 

 - 9th ed. / 
 - Boston :  McGraw-Hill Higher Education,  c2004. 
 - 1 v. (various pagings) :  col. ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>0072440007 (acidfree paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.
<br/><br/><label>Dewey Class. No.: </label>363 HIL 2004 A079 Or.