APA (7th ed.) Zitazioa

Whitten, J. L. (1994). Systems analysis & design methods (3rd.ed.). Irwin.

Chicago Style (17th ed.) Zitazioa

Whitten, Jeffrey L. Systems Analysis & Design Methods. 3rd.ed. Burr Ridge: Irwin, 1994.

MLA (9th ed.) Zitazioa

Whitten, Jeffrey L. Systems Analysis & Design Methods. 3rd.ed. Irwin, 1994.