APA (7th ed.) Zitazioa
Young, R. R. (2004). The requirements engineering handbook. Artech House.
Chicago Style (17th ed.) Zitazioa
Young, Ralph Rowland. The Requirements Engineering Handbook. Norwood, MA: Artech House, 2004.
MLA (9th ed.) Zitazioa
Young, Ralph Rowland. The Requirements Engineering Handbook. Artech House, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.