Παραπομπή APA
European Commission. (2001). Sustainable tourism and Natura 2000: Guidelines, initiatives and good practices in Europe : final publication. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission. Sustainable Tourism and Natura 2000: Guidelines, Initiatives and Good Practices in Europe : Final Publication. Luxembourg: Office for Official Publications of the European Communities, 2001.
Παραπομπή MLAEuropean Commission. Sustainable Tourism and Natura 2000: Guidelines, Initiatives and Good Practices in Europe : Final Publication. Luxembourg: Office for Official Publications of the European Communities, 2001.
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