APA (7th ed.) Citation

Kaplan, J. (1966). Mister Clemens and Mark Twain: A biography. Simon & Schuster.

Chicago Style (17th ed.) Citation

Kaplan, Justin. Mister Clemens and Mark Twain: A Biography. New York: Simon & Schuster, 1966.

MLA (9th ed.) Citation

Kaplan, Justin. Mister Clemens and Mark Twain: A Biography. Simon & Schuster, 1966.

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