1. Application of New Concepts of Physical-Chemical Wastewater Treatment;Eckenfelder,1972
2. Wastewater treatment design, Part II;Eckenfelder;Wat. Sewage Wks,1975
3. Industrial Water Pollution Control;Eckenfelder,1966
4. Controlling pollutants by combined treatment;El-Gohary;Waste Sewage Treatment,1976
5. Treatment of primary effluent by lime precipitation and dissolved air flotation;Mennel;J. Wat. Pollut. Control. Fed.,1974