Cita APA (7a ed.)

Egger, R., Roman, E., & Buhalis, D. (2008). eTourism case studies: Management and marketing issues. Elsevier.

Cita Chicago Style (17a ed.)

Egger, Roman, Egger Roman, y Dimitrios Buhalis. ETourism Case Studies: Management and Marketing Issues. Amsterdam [etc.]: Elsevier, 2008.

Cita MLA (9a ed.)

Egger, Roman, et al. ETourism Case Studies: Management and Marketing Issues. Elsevier, 2008.