(1976). Standard methods for the examination of water and: Wastewater (14th ed.). American Health Public Association.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Standard Methods for the Examination of Water and: Wastewater. 14th ed. Washington, DC: American Health Public Association, 1976.
MLA -ийн эшлэл (9 дэх хэвлэлт)Standard Methods for the Examination of Water and: Wastewater. 14th ed. American Health Public Association, 1976.
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