Cita APA (7a ed.)

LeVitus, B. (2010). Mac OS X Snow Leopard (Pocket ed.). Wiley Publishing, Inc.

Cita Chicago Style (17a ed.)

LeVitus, Bob. Mac OS X Snow Leopard. Pocket ed. Hoboken, New Jersey: Wiley Publishing, Inc, 2010.

Cita MLA (9a ed.)

LeVitus, Bob. Mac OS X Snow Leopard. Pocket ed. Wiley Publishing, Inc, 2010.