Cita APA (7a ed.)

Mark Twain. (1955). The Adventures of Tom Sawyer. The pocket library.

Cita Chicago Style (17a ed.)

Mark Twain. The Adventures of Tom Sawyer. New York: The pocket library, 1955.

Cita MLA (9a ed.)

Mark Twain. The Adventures of Tom Sawyer. The pocket library, 1955.