Cita APA (7a ed.)

Frye, C. (2019). Microsoft Excel 2019 step by step. Microsoft.

Cita Chicago Style (17a ed.)

Frye, Curtis. Microsoft Excel 2019 Step by Step. [Place of publication not identified]: Microsoft, 2019.

Cita MLA (8a ed.)

Frye, Curtis. Microsoft Excel 2019 Step by Step. Microsoft, 2019.