Pandey , G. N. <br/><br/>
Environmental Management / 
G N Pandey  
 - ND:  Vikas;  2005. 
 - 398p.:  [pb] 
<br/><br/><label>ISBN: </label>8125902929 
<br/><br/><label>Dewey Class. No.: </label>628  / PAN- E