(2020). 环 球．2020,no.9,21-23.
Chicago Style (17th ed.) Citation环 球．2020,no.9,21-23. 2020.
MLA (8th ed.) Citation环 球．2020,no.9,21-23. 2020.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation
(2020). 环 球．2020,no.9,21-23.
Chicago Style (17th ed.) Citation环 球．2020,no.9,21-23. 2020.
MLA (8th ed.) Citation环 球．2020,no.9,21-23. 2020.