APA-viite (7. p.)
Sommerville, I. Engineering software products: An introduction to modern software engineering. Pearson.
Chicago-viite (17. p.)
Sommerville, Ian. Engineering Software Products: An Introduction to Modern Software Engineering. Pearson.
MLA-viite (9. p.)
Sommerville, Ian. Engineering Software Products: An Introduction to Modern Software Engineering. Pearson.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.