Ecological aspects of used-water treatment. Volume 1 : the organisms and their ecology   (Book) 

 - London  Academic Press  1975 
 - 414 p.  24 cm. 
<br/><br/><label>ISBN: </label>0121995018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Microbiology Sewage--Purification--Biological treatment
<br/><br/><label>Universal Decimal Class. No.: </label>628.35 ECO  / 11038