APA (7th ed.) Citation

Farrow, R. (1991). UNIX system security: How to protect your data and prevent intruders. Addison-Wesley.

Chicago Style (17th ed.) Citation

Farrow, Rik. UNIX System Security: How to Protect Your Data and Prevent Intruders. Reading, Mass. u.a: Addison-Wesley, 1991.

MLA (9th ed.) Citation

Farrow, Rik. UNIX System Security: How to Protect Your Data and Prevent Intruders. Addison-Wesley, 1991.