Natural wastewater treatment systems / 
Ronald W. Crites...[et.al] 
 - 2nd ed. 
 - Boca Raton :  CRC Press,  2014 
 - xxiv, 525 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781466583269 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Biological treatment<br/>Sewage sludge--Management