Garfinkel, S., & Spafford, G. (1996). Practical UNIX and Internet Security (2nd ed.). O'Reilly & Associates.
Chicago-referens (17:e uppl.)Garfinkel, Simson, och Gene Spafford. Practical UNIX and Internet Security. 2nd ed. United States of America: O'Reilly & Associates, 1996.
MLA-referens (9:e uppl.)Garfinkel, Simson, och Gene Spafford. Practical UNIX and Internet Security. 2nd ed. O'Reilly & Associates, 1996.