Copestake, S. (2000). Excel 2000 in easy steps.
Cita Chicago (17th ed.)Copestake, Stephen. Excel 2000 in Easy Steps. New Delhi, 2000.
Cita MLA (9th ed.)Copestake, Stephen. Excel 2000 in Easy Steps. 2000.
Atenció: Aquestes cites poden no estar 100% correctes.