Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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