Chaffins, C. J. (1956). Map of Spokane Valley. County Engineer's Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChaffins, C. J. Map of Spokane Valley. [Spokane, Wash.]: County Engineer's Office, 1956.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChaffins, C. J. Map of Spokane Valley. County Engineer's Office, 1956.
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