Twain, M., & Cardwell, G. (1984). The innocents abroad ; Roughing it. New York, N.Y.: Literary Classics of the U.S. : Distributed to the trade in the U.S. and Canada by the Viking Press.

Twain, Mark, و Guy Cardwell. The Innocents Abroad ; Roughing It. New York, N.Y.: Literary Classics of the U.S. : Distributed to the trade in the U.S. and Canada by the Viking Press, 1984.

Twain, Mark, و Guy Cardwell. The Innocents Abroad ; Roughing It. New York, N.Y.: Literary Classics of the U.S. : Distributed to the trade in the U.S. and Canada by the Viking Press, 1984.