World Tourism Organization. (1976). Factors influencing travel demand and lending to the redistribution of tourist movements. World Tourism Organization.
芝加哥风格引文World Tourism Organization. Factors Influencing Travel Demand and Lending to the Redistribution of Tourist Movements. Madrid: World Tourism Organization, 1976.
MLA引文World Tourism Organization. Factors Influencing Travel Demand and Lending to the Redistribution of Tourist Movements. World Tourism Organization, 1976.
警告：这些引文格式不一定是100％准确.