Masters, Gilbert M. Ela, Wendell P. <br/><br/>
Introduction to environmental engineering and science / 
by Gilbert M. Masters and Wendell P. Ela 
 - 3rd ed. 
 - New Delhi :  Phi Learning Private Limited,  2009 . 
 - 708 p.  Paper Back 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental chemistry<br/>Risk assessment<br/>Mass
<br/><br/><label>Dewey Class. No.: </label>628  / GIL-I