Campbell, R., & Holloway, D. A. (1991). A narrative of Colonel Robert Campbell's experiences in the Rocky Mountain fur trade from 1825 to 1835. Ye Galleon Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCampbell, Robert, और Drew Alan Holloway. A Narrative of Colonel Robert Campbell's Experiences in the Rocky Mountain Fur Trade from 1825 to 1835. Fairfield, Wash.: Ye Galleon Press, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCampbell, Robert, और Drew Alan Holloway. A Narrative of Colonel Robert Campbell's Experiences in the Rocky Mountain Fur Trade from 1825 to 1835. Ye Galleon Press, 1991.
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