APA (7th ed.) Citation

United States. Bureau of Land Management. (1981). The Pony Express in Nevada (Rev. 1981.). [U.S. Dept. of the Interior, Bureau of Land Management].

Chicago Style (17th ed.) Citation

United States. Bureau of Land Management. The Pony Express in Nevada. Rev. 1981. [Washington, D.C.?]: [U.S. Dept. of the Interior, Bureau of Land Management], 1981.

MLA (9th ed.) Citation

United States. Bureau of Land Management. The Pony Express in Nevada. Rev. 1981. [U.S. Dept. of the Interior, Bureau of Land Management], 1981.