Cita APA (7a ed.)

Pirandello, L., Witt, M., & Witt, M. A. F. (2013). Six characters in search of an author. Italica Press.

Cita Chicago Style (17a ed.)

Pirandello, Luigi, Martha Witt, y Mary Ann Frese Witt. Six Characters in Search of an Author. New York: Italica Press, 2013.

Cita MLA (8a ed.)

Pirandello, Luigi, et al. Six Characters in Search of an Author. Italica Press, 2013.