Παραπομπή APA
Howarth, D. (1994). The story of P and O: The peninsular and oriental steam navigation company (Revised edition.). London: Weidenfeld and Nicolson.
Παραπομπή Chicago StyleHowarth, David. The Story of P and O: The Peninsular and Oriental Steam Navigation Company. Revised edition. London: Weidenfeld and Nicolson, 1994.
Παραπομπή MLAHowarth, David. The Story of P and O: The Peninsular and Oriental Steam Navigation Company. Revised edition. London: Weidenfeld and Nicolson, 1994.
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