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

 - new york :  The McGraw-Hill Companies ,  1997 
 - xxv+ 630 P. :  art ;  27 cm 
<br/><br/><label>Subjects--Personal Names: </label><br/>English language
<br/><br/><label>Dewey Class. No.: </label>363.7  / cun