Duggal, K. N., <br/><br/>
Elements of environmental engineering / 
K. N. Duggal. 
 - 504 pages :   illustrations ;   24 cm 
<br/><br/>Includes index  
<br/><br/><label>ISBN: </label>8121915473  RM11.25 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental engineering <br/>Sewage  --Environmental aspects 
<br/><br/><label>Dewey Class. No.: </label>628.21