APA (7 वां संस्करण) प्रशस्ति पत्र
Ruggles, R. I. (1991). A country so interesting: The Hudson's Bay Company and two centuries of mapping, 1670-1870. McGill-Queen's University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Ruggles, Richard I. A Country so Interesting: The Hudson's Bay Company and Two Centuries of Mapping, 1670-1870. Montreal ; Buffalo: McGill-Queen's University Press, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Ruggles, Richard I. A Country so Interesting: The Hudson's Bay Company and Two Centuries of Mapping, 1670-1870. McGill-Queen's University Press, 1991.
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