Cita APA (7a ed.)

Thayer, T. (1996). The Yellowstone River country of-- Montana & Wyoming. s.n..

Cita Chicago Style (17a ed.)

Thayer, Tom. The Yellowstone River Country of-- Montana & Wyoming. [United States: s.n., 1996.

Cita MLA (8a ed.)

Thayer, Tom. The Yellowstone River Country of-- Montana & Wyoming. s.n., 1996.

Precaución: Estas citas no son 100% exactas.