Dyfyniad APA
Whitten, J. L., Bentley, L. D., & Dittman, K. C. (2004). Systems analysis and design methods (6th ed.). McGraw-Hill Irwin.
Dyfyniad Arddull Chicago
Whitten, Jeffrey L., Lonnie D. Bentley, and Kevin C. Dittman. Systems Analysis and Design Methods. 6th ed. Boston: McGraw-Hill Irwin, 2004.
Dyfyniad MLA
Whitten, Jeffrey L., et al. Systems Analysis and Design Methods. 6th ed. McGraw-Hill Irwin, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.