Dyfyniad APA

Shelly, G. B., & Gary B. Shelly; Thomas J. Cashman; James S. Quasney. (2007). Microsoft Office Excel 2003: Comprehensive concepts and techniques, Project 9. Boston, MA: Thomson Course Technology.

Dyfyniad Arddull Chicago

Shelly, Gary B., và Gary B. Shelly; Thomas J. Cashman; James S. Quasney. Microsoft Office Excel 2003: Comprehensive Concepts and Techniques, Project 9. Boston, MA: Thomson Course Technology, 2007.

Dyfyniad MLA

Shelly, Gary B., và Gary B. Shelly; Thomas J. Cashman; James S. Quasney. Microsoft Office Excel 2003: Comprehensive Concepts and Techniques, Project 9. Boston, MA: Thomson Course Technology, 2007.

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