Organization for Economic Cooperation and Development. (1989). National and international tourism statistics 1974-1985. OECD.
Chicago-Zitierstil (17. Ausg.)Organization for Economic Cooperation and Development. National and International Tourism Statistics 1974-1985. Paris: OECD, 1989.
MLA-Zitierstil (9. Ausg.)Organization for Economic Cooperation and Development. National and International Tourism Statistics 1974-1985. OECD, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.