Seminar on the Tourism Industry and Construction of the European Community Bruges, Belgium, & World Tourism Organization. (1992). Seminaire sur l'industrie touristique face a la construction europeenne communautaire. World Tourism Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)Seminar on the Tourism Industry and Construction of the European Community Bruges, Belgium, και World Tourism Organization. Seminaire Sur L'industrie Touristique Face a La Construction Europeenne Communautaire. Madrid: World Tourism Organization, 1992.
Παραπομπή σε μορφή MLA (9th εκδ.)Seminar on the Tourism Industry and Construction of the European Community Bruges, Belgium, και World Tourism Organization. Seminaire Sur L'industrie Touristique Face a La Construction Europeenne Communautaire. World Tourism Organization, 1992.