Dasmohapatra, G.K.  <br/><br/>
Basic Environmental Engineering and Elementary Biology 
G.K. Dasmohapatra 
 - Kolkata  Vikas  2011 
<br/><br/><label>ISBN: </label>8125950869  250 
<br/><br/><label>Dewey Class. No.: </label>333.714  / D229B