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2. Stover, E.L., Gonzales, R., Robson, C.M. and Taylor, M.A. 1987.The Role of Ozone in Water and Wastewater Treatment, Proceedings of the Second International Conference, Edited by: Smith, D.W. and Finch, G.R. 321–340. Kitchener, Ontario: Tektran International. ISBN 0-921721-01-3
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