Spokane Area Chamber of Commerce. (1937). The Columbia basin Grand Coulee project.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpokane Area Chamber of Commerce. The Columbia Basin Grand Coulee Project. Spokane, Wash, 1937.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpokane Area Chamber of Commerce. The Columbia Basin Grand Coulee Project. 1937.
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