APA (7th ed.) Citation

United States. Environmental Protection Agency. Office of Water. (1997). Safe Drinking Water Information System/STATE version. United States Environmental Protection Agency, Office of Water.

Chicago Style (17th ed.) Citation

United States. Environmental Protection Agency. Office of Water. Safe Drinking Water Information System/STATE Version. [Washington, D.C.]: United States Environmental Protection Agency, Office of Water, 1997.

MLA (9th ed.) Citation

United States. Environmental Protection Agency. Office of Water. Safe Drinking Water Information System/STATE Version. United States Environmental Protection Agency, Office of Water, 1997.