Sethi, P. (1999). Strategies for the future of travel and tourism. Rajat Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSethi, Praveen. Strategies for the Future of Travel and Tourism. New Delhi: Rajat Publications, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSethi, Praveen. Strategies for the Future of Travel and Tourism. Rajat Publications, 1999.
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