APA (7th ed.) Citation

Twain, M. (1909). Is Shakespeare dead?: From my autobiography. Harper & Brothers.

Chicago Style (17th ed.) Citation

Twain, Mark. Is Shakespeare Dead?: From My Autobiography. New York: Harper & Brothers, 1909.

MLA (9th ed.) Citation

Twain, Mark. Is Shakespeare Dead?: From My Autobiography. Harper & Brothers, 1909.

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