Trivedi, P. R. <br/><br/>
Natural resources conservation 

 -  New Delhi, A P H Publishing Corporation, India  2010 
 - 213 
<br/><br/> 9594 
<br/><br/><label>ISBN: </label> 495 
<br/><br/><label>Dewey Class. No.: </label>363..69  / TRI-N