Style de citation APA (7e éd.)

H©œpken, W., Gretzel, U., & Law, R. (2009). Information and communication technologies in tourism 2009: Proceedings of the international conference in Amsterdam, The Netherlands, 2009. Springer Vienna.

Style de citation Chicago (17e éd.)

H©œpken, Wolfram, Ulrike Gretzel, et Rob Law. Information and Communication Technologies in Tourism 2009: Proceedings of the International Conference in Amsterdam, The Netherlands, 2009. Vienna: Springer Vienna, 2009.

Style de citation MLA (8e éd.)

H©œpken, Wolfram, et al. Information and Communication Technologies in Tourism 2009: Proceedings of the International Conference in Amsterdam, The Netherlands, 2009. Springer Vienna, 2009.