APA (7th ed.) Citation

Doyle, A. C., Lellenberg, J. L., Stashower, D., & Foley, C. (2007). Arthur Conan Doyle: A life in letters. Penguin Press.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan, Jon L. Lellenberg, Daniel Stashower, and Charles Foley. Arthur Conan Doyle: A Life in Letters. New York: Penguin Press, 2007.

MLA (9th ed.) Citation

Doyle, Arthur Conan, et al. Arthur Conan Doyle: A Life in Letters. Penguin Press, 2007.