(2019). 太空探索．2019,no. 7,9,11-12.
Chicago Style aipamena太空探索．2019,no. 7,9,11-12. 2019.
MLA aipamena太空探索．2019,no. 7,9,11-12. 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2019). 太空探索．2019,no. 7,9,11-12.
Chicago Style aipamena太空探索．2019,no. 7,9,11-12. 2019.
MLA aipamena太空探索．2019,no. 7,9,11-12. 2019.