Enger, Eldon. <br/><br/>
Environmental science :  a study of interrelationships / 
Eldon Enger; Bradley F. Smith. 
 - 5th ed. 
 - Dubuque :  W. M. C. Brown,  1995 
 - xvii, 431 p. :  col. ill. ;  28 cm. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>069715906X 
<br/><br/><label>LCCN: </label>94070437  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.