Cita APA (7a ed.)

Ness, R. A., & Ray, J. C. (2008). Sams teach yourself Mac OS X Leopard all in one (1st edition.). Sams.

Cita Chicago Style (17a ed.)

Ness, Robyn Author, y John Contributor Ray. Sams Teach Yourself Mac OS X Leopard All in One. 1st edition. [Place of publication not identified]: Sams, 2008.

Cita MLA (9a ed.)

Ness, Robyn Author, y John Contributor Ray. Sams Teach Yourself Mac OS X Leopard All in One. 1st edition. Sams, 2008.