APA (7th ed.) Citation

Twain, M. (1999). The Adventures of Tom Sawyer. Scholastic Inc.

Chicago Style (17th ed.) Citation

Twain, Mark. The Adventures of Tom Sawyer. New York, NY: Scholastic Inc, 1999.

MLA (9th ed.) Citation

Twain, Mark. The Adventures of Tom Sawyer. Scholastic Inc, 1999.