Hafen, L. R., & Hafen, A. W. (1960). Fremont's fourth expedition: A documentary account of the disaster of 1848-1849, with diaries, letters, and reports by participants in the tragedy. A. H. Clark Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHafen, LeRoy R., और Ann W. Hafen. Fremont's Fourth Expedition: A Documentary Account of the Disaster of 1848-1849, with Diaries, Letters, and Reports by Participants in the Tragedy. Glendale, Calif.: A. H. Clark Co., 1960.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHafen, LeRoy R., और Ann W. Hafen. Fremont's Fourth Expedition: A Documentary Account of the Disaster of 1848-1849, with Diaries, Letters, and Reports by Participants in the Tragedy. A. H. Clark Co., 1960.
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