APA (7th ed.) Citation

Twain, M. (1987). The adventures of Tom Sawyer. Penguin.

Chicago Style (17th ed.) Citation

Twain, Mark. The Adventures of Tom Sawyer. England: Penguin, 1987.

MLA (8th ed.) Citation

Twain, Mark. The Adventures of Tom Sawyer. Penguin, 1987.

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