APA (7th ed.) Citation

Tyszkiewicz, J., & Balson, D. (2012). User Defined Spreadsheet Functions in Excel.

Chicago Style (17th ed.) Citation

Tyszkiewicz, Jerzy, and Dermot Balson. User Defined Spreadsheet Functions in Excel. 2012.

MLA (9th ed.) Citation

Tyszkiewicz, Jerzy, and Dermot Balson. User Defined Spreadsheet Functions in Excel. 2012.

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