Cita APA (7th ed.)

Garfinkel, S., Spafford, G., & Schwartz, A. (2003). Practical UNIX and internet security (3a. ed.). O'Reilly.

Cita Chicago (17th ed.)

Garfinkel, Simson, Gene Spafford, i Alan Schwartz. Practical UNIX and Internet Security. 3a. ed. Sebastopol: O'Reilly, 2003.

Cita MLA (9th ed.)

Garfinkel, Simson, et al. Practical UNIX and Internet Security. 3a. ed. O'Reilly, 2003.