APA (7th ed.) Citation

United States. Superintendent of Documents. (1994). Environmental protection. U.S. G.P.O., Supt. of Docs.

Chicago Style (17th ed.) Citation

United States. Superintendent of Documents. Environmental Protection. Washington, DC: U.S. G.P.O., Supt. of Docs, 1994.

MLA (9th ed.) Citation

United States. Superintendent of Documents. Environmental Protection. U.S. G.P.O., Supt. of Docs, 1994.