Hegemann, W. <br/><br/>
Upgrading of wastewater treatment plants 1993 /ed. by W Hegemann   

 - Oxford  Pergamon  1994 
 - vi, 292p  incl.bibl. 
 - Water Science and Technology  V.29  No12 .
<br/><br/><label>ISBN: </label>0080425461 
<br/><br/><label>Subjects--Index Terms: </label>International Association on Water Quality 
<br/><br/><label>Dewey Class. No.: </label>628.1605  / N72.29.9 "SER"