(2020). 中国航务周刊．2020,no.48-50.
Chicago Style aipamena中国航务周刊．2020,no.48-50. 2020.
MLA aipamena中国航务周刊．2020,no.48-50. 2020.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2020). 中国航务周刊．2020,no.48-50.
Chicago Style aipamena中国航务周刊．2020,no.48-50. 2020.
MLA aipamena中国航务周刊．2020,no.48-50. 2020.