APA (7th ed.) Citation

Clemens, S. L., & Teacher, L. (1997). The unabridged Mark Twain. Courage Books.

Chicago Style (17th ed.) Citation

Clemens, Samuel Langhorne, and Lawrence Teacher. The Unabridged Mark Twain. Philadelphia, Pa: Courage Books, 1997.

MLA (9th ed.) Citation

Clemens, Samuel Langhorne, and Lawrence Teacher. The Unabridged Mark Twain. Courage Books, 1997.