APA (7th ed.) Zitazioa

Seatrade Publications. (1980). Arab shipping 1980. The Garden City.

Chicago Style (17th ed.) Zitazioa

Seatrade Publications. Arab Shipping 1980. Letchworth: The Garden City, 1980.

MLA (9th ed.) Zitazioa

Seatrade Publications. Arab Shipping 1980. The Garden City, 1980.