Enger, Eldon D. <br/><br/>
Environmental science : A study of Interrelationships  

 - 4th ed. 
 - Michigan;  Wm. C. Brown  publisher5s  1991. 
 - xxi, 434p.  ill. picture, map 
<br/><br/> include indexand References 
<br/><br/><label>ISBN: </label>069709880x 
<br/><br/><label>Dewey Class. No.: </label>363.7