Langford, N. P. (1972). The discovery of Yellowstone Park: Journal of the Washburn Expedition to the Yellowstone and Firehole Rivers in the year 1870. University of Nebraska Press.
Chicago Style (17th ed.) CitationLangford, Nathaniel Pitt. The Discovery of Yellowstone Park: Journal of the Washburn Expedition to the Yellowstone and Firehole Rivers in the Year 1870. Lincoln: University of Nebraska Press, 1972.
MLA (9th ed.) CitationLangford, Nathaniel Pitt. The Discovery of Yellowstone Park: Journal of the Washburn Expedition to the Yellowstone and Firehole Rivers in the Year 1870. University of Nebraska Press, 1972.
Warning: These citations may not always be 100% accurate.