Não informado. (1974). Fairplay International Shipping Weekly. Fairplay Publications.
Chicago-viite (17. p.)Não informado. Fairplay International Shipping Weekly. London: Fairplay Publications, 1974.
MLA-viite (8. p.)Não informado. Fairplay International Shipping Weekly. Fairplay Publications, 1974.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.