Burroughs, R. D., Lewis, M., & Clark, W. (1961). The natural history of the Lewis and Clark Expedition. Michigan State University Press.
Cita Chicago Style (17a ed.)Burroughs, Raymond Darwin, Meriwether Lewis, y William Clark. The Natural History of the Lewis and Clark Expedition. [East Lansing]: Michigan State University Press, 1961.
Cita MLA (8a ed.)Burroughs, Raymond Darwin, et al. The Natural History of the Lewis and Clark Expedition. Michigan State University Press, 1961.
Precaución: Estas citas no son 100% exactas.