Cita APA (7th ed.)

Middleton, V. T. C., Fyall, A., & Morgan, M. (2009). Marketing in travel and tourism (4th ed.). Elsevier.

Cita Chicago (17th ed.)

Middleton, Victor T. C., Allan Fyall, i Michael Morgan. Marketing in Travel and Tourism. 4th ed. Oxford: Elsevier, 2009.

Cita MLA (9th ed.)

Middleton, Victor T. C., et al. Marketing in Travel and Tourism. 4th ed. Elsevier, 2009.