APA (7th ed.) Citation

Walkenbach, J. (2007). Excel 2007 formulas. Wiley.

Chicago Style (17th ed.) Citation

Walkenbach, John. Excel 2007 Formulas. Indianapolis, Ind: Wiley, 2007.

MLA (9th ed.) Citation

Walkenbach, John. Excel 2007 Formulas. Wiley, 2007.

Warning: These citations may not always be 100% accurate.