Reed, Sherwood C. <br/><br/>
Natural systems for waste management and treatment / 
Sherwood C. Reed, Ronald W. Crites, E. Joe Middlebrooks. 
 - 2nd ed. 
 - New York :  McGraw-Hill,  1995. 
 - 433 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0070609829  RM143.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Biological treatment.<br/>Sewage sludge--Management.