Sawyer, C.N. <br/><br/>
Chemistry for environmental engineering 
Clair N. Sawyer and others. 
 - 4th ed. 
 - New York  McGraw  [n.d.] 
 - xiii, 658p., illus.; 22.5cm. 
<br/><br/><label>ISBN: </label>0-07-054978-8. 
<br/><br/><label>Dewey Class. No.: </label>628.0154  / S16C