APA (7th ed.) Zitazioa

Siu, R. C. S. (2019). Economic principles for the hospitality industry (First edition.). Routledge.

Chicago Style (17th ed.) Zitazioa

Siu, Ricardo Chi Sen. Economic Principles for the Hospitality Industry. First edition. Abingdon, Oxon: Routledge, 2019.

MLA (9th ed.) Zitazioa

Siu, Ricardo Chi Sen. Economic Principles for the Hospitality Industry. First edition. Routledge, 2019.

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