prabhakar,v.k. <br/><br/>
natural resources conservation  

 - new delhi   anmol publications pvt.ltd  2001 
 - 289p; 20cmsp 
<br/><br/><label>ISBN: </label>81-261-1805-9 
<br/><br/><label>Dewey Class. No.: </label>531.62  / pra/nat