Cita APA (7th ed.)

International Maritime Organization. (1987). International Code of Signals (Amended ed.). IMO.

Cita Chicago (17th ed.)

International Maritime Organization. International Code of Signals. Amended ed. London: IMO, 1987.

Cita MLA (9th ed.)

International Maritime Organization. International Code of Signals. Amended ed. IMO, 1987.