APA Zitierstil

San Román, L. (1999). Principles and guidelines for tourism sustainability internationally agreed.

Chicago Zitierstil

San Román, Lorena. Principles and Guidelines for Tourism Sustainability Internationally Agreed. 1999.

MLA Zitierstil

San Román, Lorena. Principles and Guidelines for Tourism Sustainability Internationally Agreed. 1999.

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