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Washington: U. S. Environmental Protection Agency, 1975
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Water Pollution Control Federation, 1974
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Water Pollution Control Federation, 1975
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Water Pollution Control Federation, 1973
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IWA Publishing, 1989
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Water Pollution Control Federation, 1986
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Water Pollution Control Federation, 1976
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Water Pollution Control Federation, 1987
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Wiley, 1988