Cita APA (7a ed.)

Conrad, J., & Ward, A. C. (1962). The secret agent: A simple tale. Longmans.

Cita Chicago Style (17a ed.)

Conrad, Joseph, y A. C. Ward. The Secret Agent: A Simple Tale. London [etc.]: Longmans, 1962.

Cita MLA (9a ed.)

Conrad, Joseph, y A. C. Ward. The Secret Agent: A Simple Tale. Longmans, 1962.