Enger, Eldon D. <br/><br/>
Environmental science :  a study of interrelationships / 
Eldon D. Enger, Bradley F. Smith 
 - 6th ed. 
 - Madison, Wisconsin :  WCB/McGraw-Hill,  1998 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0697286568  RM240.39 
<br/><br/><label>LCCN: </label>97-013135 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences