Washington State Historical Society. (1987). Columbia: The magazine of Northwest history. Washington State Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington State Historical Society. Columbia: The Magazine of Northwest History. Tacoma, Wash.: Washington State Historical Society, 1987.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington State Historical Society. Columbia: The Magazine of Northwest History. Washington State Historical Society, 1987.
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