APA استشهاد

Egger, R., & Buhalis, D. (2014). etourism case studies. Routledge.

استشهاد بنمط شيكاغو

Egger, Roman, و Dimitrios Buhalis. Etourism Case Studies. New York: Routledge, 2014.

MLA استشهاد

Egger, Roman, و Dimitrios Buhalis. Etourism Case Studies. Routledge, 2014.