Preuss, C., & Frémont, J. C. (1849). Topographical map of the road from Missouri to Oregon commencing at the mouth of the Kansas in the Missouri River and ending at the mouth of the Wallah Wallah in the Columbia: In VII sections ... Lithogr. by E. Weber & Co..
Cita Chicago Style (17a ed.)Preuss, Charles, y John Charles Frémont. Topographical Map of the Road from Missouri to Oregon Commencing at the Mouth of the Kansas in the Missouri River and Ending at the Mouth of the Wallah Wallah in the Columbia: In VII Sections ... Baltimore: Lithogr. by E. Weber & Co., 1849.
Cita MLA (8a ed.)Preuss, Charles, y John Charles Frémont. Topographical Map of the Road from Missouri to Oregon Commencing at the Mouth of the Kansas in the Missouri River and Ending at the Mouth of the Wallah Wallah in the Columbia: In VII Sections ... Lithogr. by E. Weber & Co., 1849.