APA-viite (7. p.)
Hpken, 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. https://doi.org/10.1007/978-3-211-93971-0
Chicago-viite (17. p.)
Hpken, Wolfram, Ulrike Gretzel, ja Rob Law. Information and Communication Technologies in Tourism 2009: Proceedings of the International Conference in Amsterdam, The Netherlands, 2009. Vienna: Springer Vienna, 2009. https://doi.org/10.1007/978-3-211-93971-0.
MLA-viite (9. p.)
Hpken, Wolfram, et al. Information and Communication Technologies in Tourism 2009: Proceedings of the International Conference in Amsterdam, The Netherlands, 2009. Springer Vienna, 2009. https://doi.org/10.1007/978-3-211-93971-0.
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