Cita APA (7a ed.)

Bernd Held. (2011). Microsoft Excel functions and formulas (2nd ed.). Mercury Learning and Information.

Cita Chicago Style (17a ed.)

Bernd Held. Microsoft Excel Functions and Formulas. 2nd ed. Dulles, VA: Mercury Learning and Information, 2011.

Cita MLA (8a ed.)

Bernd Held. Microsoft Excel Functions and Formulas. 2nd ed. Mercury Learning and Information, 2011.