Burroughs, R. D., Lewis, M., & Clark, W. (1961). The natural history of the Lewis and Clark Expedition. Michigan State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBurroughs, Raymond Darwin, Meriwether Lewis, और William Clark. The Natural History of the Lewis and Clark Expedition. [East Lansing]: Michigan State University Press, 1961.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBurroughs, Raymond Darwin, et al. The Natural History of the Lewis and Clark Expedition. Michigan State University Press, 1961.
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