Enger, Eldon D. <br/><br/>
Environmental Science :  a study of relationship / 
Eldon D. Enger, Bradley F. Smith. 
 - 11th ed. 
 - New York :  Mc Graw-Hill Inc,  c2009. 
 - xxiv, 488p. : ill. ; 26cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>978-007-128275-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science--Textbooks.