APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (9. izdanje)

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

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