The Pattern for Mark Twain's roughing it : Letter from Nevada by Samuel and Orion Clemens, 1861-1862 - Rogers, Franklin R. (Berkeley ; Los Angeles : University of California, 1961)
Mark Twain's letters to the Gate city -- Orion Clemens' letters to the Missouri democrat and the Gate city
Keywords: Twain, Mark; Clemens, Orion; Siglo XIX; 1861-1862; Correspondencia; Escritores; Estados Unidos de América