Gaya APA

Koo, C., Stienmetz, J, L. (2021). Information and Communication Technologies in Tourism 2021 (1st ed. 2021). : Springer International Publishing.

Gaya MLA

Koo, Chulmo., Stienmetz, Jason, L.. "Information and Communication Technologies in Tourism 2021". 1st ed. 2021 : Springer International Publishing, 2021. Electronic Resource.