Khanna, Gopesh Nath <br/><br/>
Environment problems and the United States 

 - Delhi  Ashish  1990 
 - viii,204p.  23 cm. 
<br/><br/><label>ISBN: </label>8170243378 
<br/><br/><label>Dewey Class. No.: </label>341.762,  / D, kha