A member of Clarence King's Geological Exploration of the 40th Parallel is surveying from a rock. Shoshone Canyon and Falls, Idaho Terr., in back- ground. By O'Sullivan, 1868

Chicago citation style
War Department. Office of the Chief of Engineers. U.S. Geological Exploration of the Fortieth Parallel. 1867-1881. A member of Clarence King's Geological Exploration of the 40th Parallel is surveying from a rock. Shoshone Canyon and Falls, Idaho Terr., in back- ground. By O'Sullivan, 1868. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/519537. (Accessed June 20, 2018.)
APA citation style
War Department. Office of the Chief of Engineers. U.S. Geological Exploration of the Fortieth Parallel. 1867-1881, A member of Clarence King's Geological Exploration of the 40th Parallel is surveying from a rock. Shoshone Canyon and Falls, Idaho Terr., in back- ground. By O'Sullivan, 1868. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/519537
MLA citation style
War Department. Office of the Chief of Engineers. U.S. Geological Exploration of the Fortieth Parallel. 1867-1881. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/519537>.
Note: These citations are programmatically generated and may be incomplete.