Style de citation APA

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

Style de citation Chicago

Singala, Marianna,Ed, Evangelos Christou, et Ulrike Gretzel. Social Media in Travel, Tourism and Hospitality: Theory, Practice and Cases. Surrey: Ashgate Publications, 2012.

Style de citation MLA

Singala, Marianna,Ed, et al. Social Media in Travel, Tourism and Hospitality: Theory, Practice and Cases. Ashgate Publications, 2012.