Dyfyniad APA

Sommerville, I. (1996). Software engineering (5th ed.). Addison-Wesley.

Dyfyniad Arddull Chicago

Sommerville, Ian. Software Engineering. 5th ed. Wokingham, England: Addison-Wesley, 1996.

Dyfyniad MLA

Sommerville, Ian. Software Engineering. 5th ed. Addison-Wesley, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.