Cita APA (7th ed.)

Buhalis, D., & Costa, C. (2006). Tourism business frontiers: Consumers, products and industry. Elsevier.

Cita Chicago (17th ed.)

Buhalis, Dimitrios, i Carlos Costa. Tourism Business Frontiers: Consumers, Products and Industry. Amsterdam: Elsevier, 2006.

Cita MLA (8th ed.)

Buhalis, Dimitrios, i Carlos Costa. Tourism Business Frontiers: Consumers, Products and Industry. Elsevier, 2006.