Horan, N. J. <br/><br/>
Biological wastewater treatment systems :  theory and operation / 
N.J. Horan. 
 - Chichester ;  New York :  Wiley,  c1990. 
 - viii, 310 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0471922587 :  $40.00 (U.S.) 0471924253 (pbk.) :  $30.00 (U.S.) 
<br/><br/><label>Source: </label>B-11543 
<br/><br/><label>LCCN: </label>89016629  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Biological treatment.
<br/><br/><label>LC Class. No.: </label>TD755  / .H67 1990 
<br/><br/><label>Dewey Class. No.: </label>628.3/5