Dill, C. C. (1942). The State of Washington: History, government, resources. C.C. Dill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDill, Clarence C. The State of Washington: History, Government, Resources. Spokane, Wash.: C.C. Dill, 1942.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDill, Clarence C. The State of Washington: History, Government, Resources. C.C. Dill, 1942.
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