Das, D.N. <br/><br/>
The Effect on water of tunia river due to pollution of the industrialization and urbanization 

 - Roorkee  Deptt.of A.H.E.C. IIT  2006 
 - xix,187p.  28cm. 
<br/><br/><label>Dewey Class. No.: </label>621.3121072  / DAS