Cunningham, William P. <br/><br/>
Environmental Science:  A Global Concern/ 

 - 4th ed. 
 - Boston  WCB McGraw-Hill  1997 
 - xxi,634p.:  ill.(pics., col.); 
<br/><br/>Includes appendix and index 
<br/><br/><label>ISBN: </label>0697286711 
<br/><br/><label>LC Class. No.: </label>GE105  / .C91 1997