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2. The relation between aluminum sulphate and color in mechanical filtration,;Hale;Jour. Ind. Eng. Chem.,1914
3. “Manual of Water Works Practice,” 189 195 The Waverly Press Baltimore, Md
4. Recent developments in water purification,;Donaldson;Jour. N. E. W. W. A.,1928
5. Tastes and odors in water,;Hansen;Jour. A. W. W. A.,1931