Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Zitierstil

(1995). Environmental codes of conduct for tourism. Paris: United Nations Environment Programme, Industry and Environment.

Chicago Zitierstil

Environmental Codes of Conduct for Tourism. Paris: United Nations Environment Programme, Industry and Environment, 1995.

MLA Zitierstil

Environmental Codes of Conduct for Tourism. Paris: United Nations Environment Programme, Industry and Environment, 1995.