(2003). Adventure tourism: The new frontier. Oxford: Butterworth-Heinemann.
Chicago Style CitationAdventure Tourism: The New Frontier. Oxford: Butterworth-Heinemann, 2003.
Cita MLAAdventure Tourism: The New Frontier. Oxford: Butterworth-Heinemann, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.