Shelly, G. B., Cashman, T. J., & Quasney, J. S. (2008). Microsoft Office Excel 2007: Introductory concepts and techniques. Thomson/Course Technology.
Cita Chicago (17th ed.)Shelly, Gary B., Thomas J. Cashman, i James S. Quasney. Microsoft Office Excel 2007: Introductory Concepts and Techniques. Boston, Mass: Thomson/Course Technology, 2008.
Cita MLA (9th ed.)Shelly, Gary B., et al. Microsoft Office Excel 2007: Introductory Concepts and Techniques. Thomson/Course Technology, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.