Orr, T. (2004). The Lewis and Clark Expedition: A primary source history of the journey of the Corps of Discovery. Rosen Pub. Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrr, Tamra. The Lewis and Clark Expedition: A Primary Source History of the Journey of the Corps of Discovery. New York: Rosen Pub. Group, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOrr, Tamra. The Lewis and Clark Expedition: A Primary Source History of the Journey of the Corps of Discovery. Rosen Pub. Group, 2004.
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