Cita APA (7a ed.)

Saramago, J., & Costa, M. J. (2000). The tale of the unknown island. Harvest book.

Cita Chicago Style (17a ed.)

Saramago, José, y Margaret Jull Costa. The Tale of the Unknown Island. New York: Harvest book, 2000.

Cita MLA (9a ed.)

Saramago, José, y Margaret Jull Costa. The Tale of the Unknown Island. Harvest book, 2000.