APA (7th ed.) Citation

United States. Environmental Protection Agency. Office of Water. (1999). Method 1631, revision B: Mercury in water by oxidation, purge and trap, and cold vapor atomic fluorescence spectrometry. United States Environmental Protection Agency, Office of Water.

Chicago Style (17th ed.) Citation

United States. Environmental Protection Agency. Office of Water. Method 1631, Revision B: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry. [Washington, D.C.]: United States Environmental Protection Agency, Office of Water, 1999.

MLA (9th ed.) Citation

United States. Environmental Protection Agency. Office of Water. Method 1631, Revision B: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry. United States Environmental Protection Agency, Office of Water, 1999.