Ecological aspects of used-water treatment / 
edited by C.R. Curds and H.A. Hawkes. 
 - London ; New York :  London ; New York :  Academic Press,  1975-1983. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/>Vol. 1. The organisms and their ecology -- v. 2. Biological activities and treatment processes -- v. 3. The processes and their ecology. 
<br/><br/><label>ISBN: </label>0121995018 (v.1) 
<br/><br/><label>LCCN: </label>75019628 //r842 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage -- Microbiology.--Sewage -- Microbiology.<br/>Sewage -- Purification -- Biological treatment.--Sewage -- Purification -- Biological treatment.--Sewage -- Purification -- Biological treatment.<br/>Freshwater ecology.
<br/><br/><label>LC Class. No.: </label>QR48  / .E26 
<br/><br/><label>Dewey Class. No.: </label>628.3