Cita APA (7a ed.)

Twain, M. (1967). The autobiography of MArk Twain (2.). /s.n..

Cita Chicago Style (17a ed.)

Twain, Mark. The Autobiography of MArk Twain. 2. Estados Unidos: /s.n., 1967.

Cita MLA (9a ed.)

Twain, Mark. The Autobiography of MArk Twain. 2. /s.n., 1967.