Cita APA (7th ed.)
Conrad, J. (1987). Heart of darkness. Penguin.
Cita Chicago (17th ed.)
Conrad, Joseph. Heart of Darkness. New York: Penguin, 1987.
Cita MLA (9th ed.)
Conrad, Joseph. Heart of Darkness. Penguin, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.