Duggal, K. N. <br/><br/>
Elements Of Environmental Engineering 

 - New Delhi  S Chand & Company Ltd.  2010 
 - xvii,440p.:  ill.; 
<br/><br/>Includes Bibliographical references and index 
<br/><br/><label>ISBN: </label>8121915473 
<br/><br/><label>LC Class. No.: </label>TD153  / .D87 2010