APA (7th ed.) Zitazioa
Goldstone, W. (2009). Unity game development essentials. Packt Pub..
Chicago Style (17th ed.) Zitazioa
Goldstone, Will. Unity Game Development Essentials. Birmingham, U.K.: Packt Pub., 2009.
MLA (9th ed.) Zitazioa
Goldstone, Will. Unity Game Development Essentials. Packt Pub., 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.