Duggall, K. N.  <br/><br/>
Elements of environmental engineering / 
K. N. Duggall. 
 - 5th ed. 
 - New Delhi :   S. Chand & Co.,   c1966 [Reprinted 2000]. 
 - xx, 496 pages :  illustrations ;  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>8121915473 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental engineering.
<br/><br/><label>Dewey Class. No.: </label>628 DUG