Cita APA (7th ed.)

Sommerville, I. (1989). Software engineering (3rd ed.). Addison-Wesley.

Cita Chicago (17th ed.)

Sommerville, Ian. Software Engineering. 3rd ed. Wokingham, England ; Reading, Mass.: Addison-Wesley, 1989.

Cita MLA (8th ed.)

Sommerville, Ian. Software Engineering. 3rd ed. Addison-Wesley, 1989.