APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, & Krech, S. (1984). The Subarctic fur trade: Native social and economic adaptations. University of British Columbia Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Shepard Krech. The Subarctic Fur Trade: Native Social and Economic Adaptations. Vancouver: University of British Columbia Press, 1984.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Shepard Krech. The Subarctic Fur Trade: Native Social and Economic Adaptations. University of British Columbia Press, 1984.
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