APA (7th ed.) Citation

Duffy, T. (1997). Microsoft Excel 97. Addison-Wesley.

Chicago Style (17th ed.) Citation

Duffy, Tim. Microsoft Excel 97. Reading: Addison-Wesley, 1997.

MLA (8th ed.) Citation

Duffy, Tim. Microsoft Excel 97. Addison-Wesley, 1997.

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