Mills, R. V. (1947). Stern-wheelers up Columbia: A century of steamboating in the Oregon country. Pacific Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMills, Randall Vause. Stern-wheelers Up Columbia: A Century of Steamboating in the Oregon Country. Palo Alto, Calif.: Pacific Books, 1947.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMills, Randall Vause. Stern-wheelers Up Columbia: A Century of Steamboating in the Oregon Country. Pacific Books, 1947.
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