APA (7th ed.) Citation

Twain, M. (2007). The man that corrupted Hadleyburg. Penguin Books.

Chicago Style (17th ed.) Citation

Twain, Mark. The Man That Corrupted Hadleyburg. London: Penguin Books, 2007.

MLA (9th ed.) Citation

Twain, Mark. The Man That Corrupted Hadleyburg. Penguin Books, 2007.

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