Organization for Economic Cooperation and Development. (1989). National and international tourism statistics 1974-1985. OECD.
Citazione stile Chigago Style (17a edizione)Organization for Economic Cooperation and Development. National and International Tourism Statistics 1974-1985. Paris: OECD, 1989.
Citatione MLA (9a ed.)Organization for Economic Cooperation and Development. National and International Tourism Statistics 1974-1985. OECD, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.