Lawton, V. (1941). The history of grazing in the state of Washington: A Works Progress Administration history.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLawton, Viola. The History of Grazing in the State of Washington: A Works Progress Administration History. 1941.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLawton, Viola. The History of Grazing in the State of Washington: A Works Progress Administration History. 1941.
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