Gaya APA

Huadong, G. (2020). International Journal of Digital Earth Vol.13 No. 10-12 2020 (Vol.13 No.7-9 2020). Oxon: Taylor & Francis Group.

Gaya MLA

Huadong, Guo. "International Journal of Digital Earth Vol.13 No. 10-12 2020". Vol.13 No.7-9 2020 Oxon: Taylor & Francis Group, 2020. Text.