Swarbrooke John & Horner Susan. (2001). Business travel and tourism. Butterworth Heinemann.
Chicago Style (17th ed.) CitationSwarbrooke John and Horner Susan. Business Travel and Tourism. Oxford: Butterworth Heinemann, 2001.
Trích dẫn MLASwarbrooke John and Horner Susan. Business Travel and Tourism. Butterworth Heinemann, 2001.
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