APA (7th ed.) Zitazioa
Beck, K. Extreme Programming Explained: Embrace Change, 2nd edition. Pearson.
Chicago Style (17th ed.) Zitazioa
Beck, Kent. Extreme Programming Explained: Embrace Change, 2nd Edition. Pearson.
MLA (9th ed.) Zitazioa
Beck, Kent. Extreme Programming Explained: Embrace Change, 2nd Edition. Pearson.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.