1. Effluent disposal;Abson,1967
2. Formation and final composition of the bacterial flora of a diary waste activated sludge;Adamse;Wat. Res.,1968
3. Some characteristics of arthrobacters from a dairy waste activated sludge;Adamse;Wat. Res.,1970
4. The biology of a sewage-treatment plant–a preliminary survey–Decatur, Illinois;Agersborg;Sewage Wks J.,1929
5. An introduction to the activated sludge process;Ainsworth;Process Biochem.,1966