APA aipamena

Kotonya, G., & Sommerville, I. (1998). Requirements engineering: Processes and techniques. John Wiley.

Chicago Style aipamena

Kotonya, Gerald, and Ian Sommerville. Requirements Engineering: Processes and Techniques. Chichester: John Wiley, 1998.

MLA aipamena

Kotonya, Gerald, and Ian Sommerville. Requirements Engineering: Processes and Techniques. John Wiley, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.