Pierce, John. Map of Public Surveys in Colorado Territory to accompany a report of the Surveyor Gen., 1863. [Washington D.C.]. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc29452/. Accessed October 23, 2016.
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.