Ritchie, B. W. (2009). Crisis and disaster management for tourism. Channel View Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRitchie, Brent W. Crisis and Disaster Management for Tourism. Bristol: Channel View Publications, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRitchie, Brent W. Crisis and Disaster Management for Tourism. Channel View Publications, 2009.
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