APA (7th ed.) Citation

Oka, H., & Jafari, J. (1991). Serving international travelers: A language and cultural training concept for hotels. Centre des hautes etudes touristiques.

Chicago Style (17th ed.) Citation

Oka, Hisayuki, and Jafar Jafari. Serving International Travelers: A Language and Cultural Training Concept for Hotels. Paris: Centre des hautes etudes touristiques, 1991.

MLA (9th ed.) Citation

Oka, Hisayuki, and Jafar Jafari. Serving International Travelers: A Language and Cultural Training Concept for Hotels. Centre des hautes etudes touristiques, 1991.