Schoolcraft, Henry Rowe, 1793-1864. Map of the Northwestern Territories of the United States, Showing the Track pursued by the Expedition under Gov. Cass in 1820. Albany, New York. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc29427/. Accessed April 28, 2015.
Note: Inconsistencies in capitalization and punctuation within the Digital Library may affect this citation. Before using this citation in formal writing, please consult your preferred style manual. More information.