APA (7th ed.) Citation

3G E-Learning LLC, USA. (2019). Focus on Asia: Geography and environment. 3G E-learning LLC.

Chicago Style (17th ed.) Citation

3G E-Learning LLC, USA. Focus on Asia: Geography and Environment. New York: 3G E-learning LLC, 2019.

MLA (9th ed.) Citation

3G E-Learning LLC, USA. Focus on Asia: Geography and Environment. 3G E-learning LLC, 2019.