Slager, D. (2016). Essential Excel 2016: A step-by-step guide. apress.
Cita Chicago (17th ed.)Slager, David. Essential Excel 2016: A Step-by-step Guide. usa: apress, 2016.
Cita MLA (9th ed.)Slager, David. Essential Excel 2016: A Step-by-step Guide. apress, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.