APA (7th ed.) Citation

Twain, M. (1962). Roughing it. Signet Classic.

Chicago Style (17th ed.) Citation

Twain, Mark. Roughing It. New York, Estados Unidos: Signet Classic, 1962.

MLA (9th ed.) Citation

Twain, Mark. Roughing It. Signet Classic, 1962.

Warning: These citations may not always be 100% accurate.