Cita APA (7a ed.)

Conrad, J. (1921). The secret agent: A Simple Tale. Doubleday.

Cita Chicago Style (17a ed.)

Conrad, Joseph. The Secret Agent: A Simple Tale. New York: Doubleday, 1921.

Cita MLA (8a ed.)

Conrad, Joseph. The Secret Agent: A Simple Tale. Doubleday, 1921.