APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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