Twain, M. (1982). Roughing it. Time-Life Books.
Cita Chicago Style (17a ed.)Twain, Mark. Roughing It. [Alexandria, Va.]: Time-Life Books, 1982.
Cita MLA (8a ed.)Twain, Mark. Roughing It. Time-Life Books, 1982.
Precaución: Estas citas no son 100% exactas.