Shah, S & Goyal, Roopal. <br/><br/>
Basics of envirenmental studies 

 - Ahmedabad :  Atul Prakashan,  1994 
 - 189. 
<br/><br/><label>ISBN: </label>0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sanitary municipal engineering
<br/><br/><label>Dewey Class. No.: </label>628.5  / SHA