Twiss, T. (1846). Oregon question examined, in respect to facts and the law of nations. Longman, Brown, Green, and Longmans.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTwiss, Travers. Oregon Question Examined, in Respect to Facts and the Law of Nations. London: Longman, Brown, Green, and Longmans, 1846.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTwiss, Travers. Oregon Question Examined, in Respect to Facts and the Law of Nations. Longman, Brown, Green, and Longmans, 1846.
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