Cita APA (7a ed.)

Twain, M., & Swan, D. (1987). The Prince and the pauper. Longman.

Cita Chicago Style (17a ed.)

Twain, Mark, y D.K Swan. The Prince and the Pauper. Burnt Mill: Longman, 1987.

Cita MLA (9a ed.)

Twain, Mark, y D.K Swan. The Prince and the Pauper. Longman, 1987.