(1963). The marine observer's handbook (8a. ed.). Her Majesty's Stationery Office.
Cita Chicago (17th ed.)The Marine Observer's Handbook. 8a. ed. Londres: Her Majesty's Stationery Office, 1963.
Cita MLA (9th ed.)The Marine Observer's Handbook. 8a. ed. Her Majesty's Stationery Office, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.