APA (7th ed.) Citation

Clemens, S., Twain, M., & Neider, C. (1985). Papa, an intimate biography of Mark Twain. Doubleday.

Chicago Style (17th ed.) Citation

Clemens, Susy, Mark Twain, and Charles Neider. Papa, an Intimate Biography of Mark Twain. Garden City, N.Y.: Doubleday, 1985.

MLA (8th ed.) Citation

Clemens, Susy, et al. Papa, an Intimate Biography of Mark Twain. Doubleday, 1985.

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