Cita APA (7a ed.)

Walkenbach John. (2007). Microsoft Office Excel 2007. Wiley Pub.Inc.

Cita Chicago Style (17a ed.)

Walkenbach John. Microsoft Office Excel 2007. New Delhi: Wiley Pub.Inc, 2007.

Cita MLA (9a ed.)

Walkenbach John. Microsoft Office Excel 2007. Wiley Pub.Inc, 2007.