Cita APA (7th ed.)

Spivey, D. (2011). Mac OS X Lion. John Wiley & Sons, Inc..

Cita Chicago (17th ed.)

Spivey, Dwight. Mac OS X Lion. Indianapolis, Ind.: John Wiley & Sons, Inc., 2011.

Cita MLA (9th ed.)

Spivey, Dwight. Mac OS X Lion. John Wiley & Sons, Inc., 2011.