Mitchell, S. A. (1867). Map of Oregon, Washington, Idaho, and part of Montana. [s.n].
Cita Chicago Style (17a ed.)Mitchell, S. Augustus. Map of Oregon, Washington, Idaho, and Part of Montana. Pennsylvania: [s.n], 1867.
Cita MLA (8a ed.)Mitchell, S. Augustus. Map of Oregon, Washington, Idaho, and Part of Montana. [s.n], 1867.
Precaución: Estas citas no son 100% exactas.