Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Middleton, Victor T. C., Michael Morgan, y Alan Fyall. Marketing in Travel and Tourism. 4th ed. Amsterdam [etc.]: Butterworth-Heinemann, 2009.

Cita MLA (9a ed.)

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