Work, J. (1971). The Snake Country expedition of 1830-1831: John Work's field journal. University of Oklahoma Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWork, John. The Snake Country Expedition of 1830-1831: John Work's Field Journal. Norman: University of Oklahoma Press, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWork, John. The Snake Country Expedition of 1830-1831: John Work's Field Journal. University of Oklahoma Press, 1971.
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