1. Water supply and pollution control;Clark,1977
2. Aerated lagoons for potato processing wastes;Dostal,1970
3. Comparative biological waste treatment design;Eckenfelder,1967
4. Digestion of solids between the thermophilic and non-thermophilic range;Heukelekian;Sewage Works,1973
5. Feasibility of the upflow anaerobic sludge blanket (UASB) process;Lettinga,1979