Youell, R. (1998). Tourism: An introduction. Harlow, Essex: Addison Wesley Longman.
Trích dẫn kiểu ChicagoYouell, Ray. Tourism: An Introduction. Harlow, Essex: Addison Wesley Longman, 1998.
ציטוט MLAYouell, Ray. Tourism: An Introduction. Harlow, Essex: Addison Wesley Longman, 1998.
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