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History of the expedition under the command of Lewis and Clark to the sources of the Missouri River thence across the Rocky Mountains and down the Columbia River to the Pacific Oceanperformed during the years 1804-5-6 by order of the government of the United StatesBookحسب Lewis, Meriwether, 1774-1809
منشور في 1893 -
Travels in the interior parts of America;communicating discoveries made in exploring the Missouri Red river and WashitaBookحسب Jefferson, Thomas, 1743-1826
منشور في 1807