Dwived, S./ Dwivedi, A.K. <br/><br/>
River pollution and solution/ 
Dwived, S./ Dwivedi, A.K. 
 - London  New central book agency  2010 
 - xiv , 182p  Hbk 
<br/><br/><label>ISBN: </label>9788173816222 
<br/><br/><label>LC Class. No.: </label>QH 541.5 D9 2010