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The Lewis and Clark Expeditiona primary source history of the journey of the Corps of DiscoveryBook由 Orr, Tamra
出版 2004 -
由 Huftalen, Sarah Gillespie, 1865-1955
出版 2000 -
The Homestead Act of 1862a primary source history of the settlement of the American Heartland in the late 19th CenturyBook由 Porterfield, Jason
出版 2005