Jackson, D. (1987). Among the sleeping giants: Occasional pieces on Lewis and Clark. University of Illinois Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJackson, Donald. Among the Sleeping Giants: Occasional Pieces on Lewis and Clark. Urbana: University of Illinois Press, 1987.
एमएलए (8वां संस्करण) प्रशस्ति पत्रJackson, Donald. Among the Sleeping Giants: Occasional Pieces on Lewis and Clark. University of Illinois Press, 1987.
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