Washington State Historical Society. The Washington historian. Washington State Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington State Historical Society. The Washington Historian. Tacoma: Washington State Historical Society.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington State Historical Society. The Washington Historian. Washington State Historical Society.
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