APA (7th ed.) Zitazioa
Sommerville, I. Engineering software products: An introduction to modern software engineering. Pearson.
Chicago Style (17th ed.) Zitazioa
Sommerville, Ian. Engineering Software Products: An Introduction to Modern Software Engineering. Pearson.
MLA (9th ed.) Zitazioa
Sommerville, Ian. Engineering Software Products: An Introduction to Modern Software Engineering. Pearson.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.