Oxidation ditch technology  international conference, Amsterdam, October 1982 
[organised by CEP Consultants Ltd.] 
 - Edinburgh  CEP Consultants  c1982 
 - 160 p.  ill.  30cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Oxidation
<br/><br/><label>Dewey Class. No.: </label>628.3  / 51