Saul, J. (1991). Darkness. Bantam Books.
Cita Chicago (17th ed.)Saul, John. Darkness. New York: Bantam Books, 1991.
Cita MLA (9th ed.)Saul, John. Darkness. Bantam Books, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)