Conference on Water Quality and its management (1st) (New Delhi) (1991) <br/><br/>
Proceedings. Ed. by C V J Varma, and others 

 - New Delhi   C B I P        1998 
 - 583p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(D24):8.2.N9, N8