Thompson, D. (1933). David Thompson's account of his first attempt to cross the Rockies. Jackson Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThompson, David. David Thompson's Account of His First Attempt to Cross the Rockies. Kingston, Canada: Jackson Press, 1933.
एमएलए (8वां संस्करण) प्रशस्ति पत्रThompson, David. David Thompson's Account of His First Attempt to Cross the Rockies. Jackson Press, 1933.
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