Trevedi, P.R.  . <br/><br/>
Natural resources conservation /  
by P.R. Trivedi. 
 - New Delhi :   A P H Publishing Corporation ,   2004 
 - 213p ;  
<br/><br/><label>ISBN: </label>81-7648-531-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>X:17-271  / P4;1