Παραπομπή APA
Institute of Chartered Shipbrokers. (2008). Economics of sea transport and international trade (2nd ed.). Livingston: Witherby Seamanship International.
Παραπομπή Chicago StyleInstitute of Chartered Shipbrokers. Economics of Sea Transport and International Trade. 2nd ed. Livingston: Witherby Seamanship International, 2008.
Παραπομπή MLAInstitute of Chartered Shipbrokers. Economics of Sea Transport and International Trade. 2nd ed. Livingston: Witherby Seamanship International, 2008.
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