APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.