APA (7th ed.) Zitazioa
Gordon, J. (2017). The Power of Positive Leadership. John Wiley & Sons.
Chicago Style (17th ed.) Zitazioa
Gordon, Jon. The Power of Positive Leadership. New Jersey: John Wiley & Sons, 2017.
MLA (9th ed.) Zitazioa
Gordon, Jon. The Power of Positive Leadership. John Wiley & Sons, 2017.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.