Crites, Ronald W. <br/><br/>
Natural wastewater treatment systems / 
Ronald W. Crites, E. Joe Middlebrooks, Robert K. Bastian, Sherwood C. Reed. 
 - 2nd ed. 
 - Boca Raton :  IWA Publishing :  CRC Press, Taylor & Francis Group,  [2014] 
 - xxiv, 525 p. :  ill. ;  25 cm 
<br/><br/> Revised edition of: Natural wastewater treatment systems / Ronald W. Crites, E. Joe Middlebrooks, Sherwood C. Reed. 2006. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1466583266 (cloth : acid-free paper) 9781466583269 (cloth : acid-free paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage sludge--Management.<br/>Sewage--Purification--Biological treatment.