Packard, W. V. (1984). Sea-trading. Fairplay.
Cita Chicago (17th ed.)Packard, William V. Sea-trading. Londres: Fairplay, 1984.
Cita MLA (9th ed.)Packard, William V. Sea-trading. Fairplay, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.