Dyfyniad APA

Shelly, G. B., & Rosenblatt, H. J. (2012). Systems analysis and design (9th ed.). Course Technology Cengage Learning.

Dyfyniad Arddull Chicago

Shelly, Gary B., and Harry J. Rosenblatt. Systems Analysis and Design. 9th ed. Boston: Course Technology Cengage Learning, 2012.

Dyfyniad MLA

Shelly, Gary B., and Harry J. Rosenblatt. Systems Analysis and Design. 9th ed. Course Technology Cengage Learning, 2012.

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