Cita APA (7th ed.)
Proffitt, B., & Von Hagen, W. (2002). Mac OS X power user's guide. Premier Press.
Cita Chicago (17th ed.)
Proffitt, Brian, i William Von Hagen. Mac OS X Power User's Guide. [Florence, KY?]: Premier Press, 2002.
Cita MLA (9th ed.)
Proffitt, Brian, i William Von Hagen. Mac OS X Power User's Guide. Premier Press, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.