Cita APA (7a ed.)

Evans, H. E. (1997). The natural history of the Long Expedition to the Rocky Mountains (1819-1820). Oxford University Press.

Cita Chicago Style (17a ed.)

Evans, Howard Ensign. The Natural History of the Long Expedition to the Rocky Mountains (1819-1820). New York: Oxford University Press, 1997.

Cita MLA (9a ed.)

Evans, Howard Ensign. The Natural History of the Long Expedition to the Rocky Mountains (1819-1820). Oxford University Press, 1997.