Dyfyniad APA

Franson,Mary Ann H. (1995). Standard Methods for the Examination of Water and Waste Water (19th ed.). American Public Health Association.

Dyfyniad Arddull Chicago

Franson,Mary Ann H. Standard Methods for the Examination of Water and Waste Water. 19th ed. Washington: American Public Health Association, 1995.

Dyfyniad MLA

Franson,Mary Ann H. Standard Methods for the Examination of Water and Waste Water. 19th ed. American Public Health Association, 1995.

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