European Commission. (2003). Structure, performance and competitiveness of European tourism and its enterprises. Office for Official Publications of the European Communities.
Παραπομπή σε μορφή Chicago (17η εκδ.)European Commission. Structure, Performance and Competitiveness of European Tourism and Its Enterprises. Luxembourg: Office for Official Publications of the European Communities, 2003.
Παραπομπή σε μορφή MLA (8th εκδ.)European Commission. Structure, Performance and Competitiveness of European Tourism and Its Enterprises. Office for Official Publications of the European Communities, 2003.
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