Purohit, S. K. <br/><br/>
Chemical and biological mothods of water and air polltin control 

 - Bikaner  Agro Botanical Publishers( India )  1985 
 - 56P. 
<br/><br/><label>ISBN: </label> RS 35.00 
<br/><br/><label>Source: </label> RS 35.00 
<br/><br/><label>Dewey Class. No.: </label>304.2 PUR