Παραπομπή σε μορφή APA (7η εκδ.)

European Commission. (2004). Early warning system for identifying declining tourist destinations, and preventive best practices. Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Commission. Early Warning System for Identifying Declining Tourist Destinations, and Preventive Best Practices. Luxembourg: Office for Official Publications of the European Communities, 2004.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Commission. Early Warning System for Identifying Declining Tourist Destinations, and Preventive Best Practices. Office for Official Publications of the European Communities, 2004.