Washington State Historical Society, Miles, C., & Sperlin, O. B. (1940). Building a state, Washington, 1889-1939. Washington State Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington State Historical Society, Charles Miles, और Ottis Bedney Sperlin. Building a State, Washington, 1889-1939. [Tacoma]: Washington State Historical Society, 1940.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington State Historical Society, et al. Building a State, Washington, 1889-1939. Washington State Historical Society, 1940.
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