Purohit, S S; Saxena, M M <br/><br/>
Water life and pollution 

 -  Agro Botanical Publishers (India), Bikaner  1990 
 - 108 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water pollution
<br/><br/><label>Dewey Class. No.: </label>628.168  PUR-W