Saxena, M. M. <br/><br/>
Environmental analysis  water, soil and air 
by M. M. Saxena. 
 - 2nd. 
 - Bikaner  Agro Botanical Pub.  1990 
 - 186p 
<br/><br/><label>ISBN: </label>8185031363 
<br/><br/><label>Dewey Class. No.: </label>333.9  / N90