APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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