American Water Works Association & ebrary, Inc. (2013). Nitrification prevention and control in drinking water (2nd ed.). American Water Works Association.
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Chicago-čujuhus (17. p.)
American Water Works Association juo Inc ebrary. Nitrification Prevention and Control in Drinking Water. 2nd ed. Denver, Colo.: American Water Works Association, 2013.
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MLA-čujuhus (9. p.)
American Water Works Association juo Inc ebrary. Nitrification Prevention and Control in Drinking Water. 2nd ed. American Water Works Association, 2013.
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