Reynolds, Tom D. <br/><br/>
Unit operations and processes in environmental engineering / 
Tom D. Reynolds [and]  Paul A. Richards. 
 - 2nd ed. 
 - Boston :  PWS,  c1996. 
 - xvi, 665 p. :  ill. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0534948855 (pbk.) 0534948847 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Purification.<br/>Sewage--Purification.<br/>Water--Purification--Problems, exercises, etc.<br/>Sewage--Purification--Problems, exercises, etc.