Yates, H. A. (1968). A pioneer project, a story of courage: History of the Okanogan irrigation project, in Okanogan County, Washington. Metropolitan Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYates, Herbert A. A Pioneer Project, a Story of Courage: History of the Okanogan Irrigation Project, in Okanogan County, Washington. Portland, Or.: Metropolitan Press, 1968.
एमएलए (8वां संस्करण) प्रशस्ति पत्रYates, Herbert A. A Pioneer Project, a Story of Courage: History of the Okanogan Irrigation Project, in Okanogan County, Washington. Metropolitan Press, 1968.
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