APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, & Harrison, D. (2001). Tourism and the less developed world: Issues and case studies. CABI Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और David Harrison. Tourism and the Less Developed World: Issues and Case Studies. New York, N.Y.: CABI Pub., 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और David Harrison. Tourism and the Less Developed World: Issues and Case Studies. CABI Pub., 2001.
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