Cita APA (7th ed.)

Catapult, I. (1996). Microsoft excel 97: Step by step. Microsoft Press.

Cita Chicago (17th ed.)

Catapult, Inc. Microsoft Excel 97: Step by Step. Redmond, Wash: Microsoft Press, 1996.

Cita MLA (9th ed.)

Catapult, Inc. Microsoft Excel 97: Step by Step. Microsoft Press, 1996.