APA
3G E-learning LLC, . (2018). Social media and internet for hotels. New York: 3G E-Learning LLC.
Chicago
3G E-learning LLC, . 2018. Social media and internet for hotels. New York: 3G E-Learning LLC.
Harvard
3G E-learning LLC, . (2018). Social media and internet for hotels. New York: 3G E-Learning LLC.
MLA
3G E-learning LLC, . Social media and internet for hotels. New York: 3G E-Learning LLC. 2018.