Winters, H. D. (1931). Congress and the Oregon question. Rochester Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWinters, Herbert D. Congress and the Oregon Question. [Rochester, N.Y.]: Rochester Historical Society, 1931.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWinters, Herbert D. Congress and the Oregon Question. Rochester Historical Society, 1931.
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