Sethi, P. (1999). Strategies for the future of travel and tourism. Rajat Publications.
芝加哥风格引文Sethi, Praveen. Strategies for the Future of Travel and Tourism. New Delhi: Rajat Publications, 1999.
MLA引文Sethi, Praveen. Strategies for the Future of Travel and Tourism. Rajat Publications, 1999.
警告：这些引文格式不一定是100％准确.