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Map of Oregon and upper California from the surveys of John Charles Frémont and other authoritiescartographic materialBằng Frémont, John Charles, 1813-1890
Được phát hành 1848 -
Map of Oregon and upper California from the surveys of John Charles Fremont and other authoritiescartographic materialBằng Preuss, Charles, 1803-1854
Được phát hành 1848