Sharma, P.D. <br/><br/>
Ecology and Environment 

 - New Delhi  Rastogi Publications  1975 
 - 660 
<br/><br/><label>ISBN: </label>8171334202 
<br/><br/><label>Publisher. No.: </label> Gangarams Book Bangalore 
<br/><br/><label>Subjects--Personal Names: </label> Environmental Science 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science