Pioneers of the Tobacco Plains Country & Johnson, O. W. (1950). The story of the Tobacco Plains country: The autobiography of a community.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPioneers of the Tobacco Plains Country और Olga Weydemeyer Johnson. The Story of the Tobacco Plains Country: The Autobiography of a Community. Rexford? Mont.], 1950.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPioneers of the Tobacco Plains Country और Olga Weydemeyer Johnson. The Story of the Tobacco Plains Country: The Autobiography of a Community. 1950.
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