Sharma, Shyam Sunder  <br/><br/>
सागर प्रदुषण 
 Sagar pradushan 

 - Delhi:   Gyan Ganga,   1994 
 - 118p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science
<br/><br/><label>Universal Decimal Class. No.: </label>504.42   / N4