Trích dẫn APA

David, W. Passport: An introduction to the travel and tourism industry / David W.Howell. South-Western Publishing Co..

Trích dẫn kiểu Chicago

David, W.Howell. Passport: An Introduction to the Travel and Tourism Industry / David W.Howell. South-Western Publishing Co..

Trích dẫn MLA

David, W.Howell. Passport: An Introduction to the Travel and Tourism Industry / David W.Howell. South-Western Publishing Co..

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