Seatrade Publications. (1980). Arab shipping 1980. The Garden City.
Cita Chicago (17th ed.)Seatrade Publications. Arab Shipping 1980. Letchworth: The Garden City, 1980.
Cita MLA (9th ed.)Seatrade Publications. Arab Shipping 1980. The Garden City, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.