Papers and discussion from One Day Symposium Reducing Aeration Costs held at the Dragonara Hotel, Bristol. 19th October 1983 

 - [Bristol]  Institute of Water Pollution Control, South Western Branch  1983 
 - 1v. (various pagings)  ill. 
<br/><br/>Cover title 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage disposal--Costs--Great Britain<br/>Sewage--Purification--Aeration