Shearer, R. A. (2014). Olaus Jeldness: Pioneer mining man and Father of Skiing at Rossland, British Columbia and Spokane, Washington. Ronald A. Shearer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रShearer, Ronald Alexander. Olaus Jeldness: Pioneer Mining Man and Father of Skiing at Rossland, British Columbia and Spokane, Washington. Vancouver, B. C.: Ronald A. Shearer, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रShearer, Ronald Alexander. Olaus Jeldness: Pioneer Mining Man and Father of Skiing at Rossland, British Columbia and Spokane, Washington. Ronald A. Shearer, 2014.
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