APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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