Cita APA (7th ed.)
Evans, H. E. (1997). The natural history of the Long Expedition to the Rocky Mountains (1819-1820). Oxford University Press.
Cita Chicago (17th 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 (9th ed.)
Evans, Howard Ensign. The Natural History of the Long Expedition to the Rocky Mountains (1819-1820). Oxford University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.