Purohit, S. S. <br/><br/>
Ecology, environment and pollution / 
S. S. Purohit 
 - India :  Agrobios,  2003 
<br/><br/>Includes references & index. 
<br/><br/><label>ISBN: </label>8177541962 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>628  / PUR