O'Keefe, T. L., & Reading, E. E. (2000). Microsoft Excel 2000: Illustrated introductory edition. Course Technology.
Dyfyniad Arddull ChicagoO'Keefe, Tara Lynn, and Elizabeth Eisner Reading. Microsoft Excel 2000: Illustrated Introductory Edition. Massachusetts: Course Technology, 2000.
Dyfyniad MLAO'Keefe, Tara Lynn, and Elizabeth Eisner Reading. Microsoft Excel 2000: Illustrated Introductory Edition. Course Technology, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.