APA aipamena

(2019). Year Book & Infopedia 2020 (2019.). Hachette Book.

Chicago Style aipamena

Year Book & Infopedia 2020. 2019. Hachette Book, 2019.

MLA aipamena

Year Book & Infopedia 2020. 2019. Hachette Book, 2019.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.