APA (7th ed.) Citation

Twain, M., De Sève, P., & Blount, R., Jr. (2003). A murder, a mystery, and a marriage. W.W. Norton.

Chicago Style (17th ed.) Citation

Twain, Mark, Peter De Sève, and Roy Blount, Jr. A Murder, a Mystery, and a Marriage. New York ; London: W.W. Norton, 2003.

MLA (8th ed.) Citation

Twain, Mark, et al. A Murder, a Mystery, and a Marriage. W.W. Norton, 2003.

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