APA (7th ed.) Citation

Bullard‏, N., Twain, M., & Fisher Johnson, P. The adventures of Tom Sawyer (First edition.).

Chicago Style (17th ed.) Citation

Bullard‏, Nick‏, Mark Twain, and Paul Fisher Johnson. The Adventures of Tom Sawyer. First edition. Oxford.

MLA (9th ed.) Citation

Bullard‏, Nick‏, et al. The Adventures of Tom Sawyer. First edition.