Cita APA (7a ed.)

Safari Tech Books Online, King, T. A., & Tittel, E. C. (2003). Security+ training guide (1st edition.). Que.

Cita Chicago Style (17a ed.)

Safari Tech Books Online, Todd Author King, y Ed Contributor Tittel. Security+ Training Guide. 1st edition. [Place of publication not identified]: Que, 2003.

Cita MLA (9a ed.)

Safari Tech Books Online, et al. Security+ Training Guide. 1st edition. Que, 2003.