Gupta, Ram S. <br/><br/>
Introduction to environmental engineering and science / 
Ram S. Gupta 
 - [2nd ed.] 
 - Rockville, Md. :  ABS Consulting,  2004 
 - xxv, 532 p.  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0865879729  RM323.96 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences<br/>Environmental engineering