Robertson, C., Rich, E. E., & Flemming, R. H. (1939). Colin Robertson's Correspondence book, September 1817 to September 1822. The Champlain society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRobertson, Colin, E. E. Rich, और R. Harvey Flemming. Colin Robertson's Correspondence Book, September 1817 to September 1822. Toronto: The Champlain society, 1939.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRobertson, Colin, et al. Colin Robertson's Correspondence Book, September 1817 to September 1822. The Champlain society, 1939.
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