APA (7th ed.) Citation

Christou, E., Gretzel, U., & Sigala, M. (2012). Social media in travel, tourism and hospitality: Theory, practice and cases. Ashgate.

Chicago Style (17th ed.) Citation

Christou, Evangelos, Ulrike Gretzel, and Marianna Sigala. Social Media in Travel, Tourism and Hospitality: Theory, Practice and Cases. Farnham [etc.]: Ashgate, 2012.

MLA (9th ed.) Citation

Christou, Evangelos, et al. Social Media in Travel, Tourism and Hospitality: Theory, Practice and Cases. Ashgate, 2012.