International Trade Centre UNCTAD-GATT. (1973). Official commercial representation abroad. A handbook for officers of developing countries. International Trade Centre.
Cita Chicago (17th ed.)International Trade Centre UNCTAD-GATT. Official Commercial Representation Abroad. A Handbook for Officers of Developing Countries. Ginebra: International Trade Centre, 1973.
Cita MLA (9th ed.)International Trade Centre UNCTAD-GATT. Official Commercial Representation Abroad. A Handbook for Officers of Developing Countries. International Trade Centre, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.