Cita APA (7a ed.)

Walker, K. M., & Cavanaugh, L. C. (1998). Computer security policies and sunscreen firewalls. Sun Microsystems.

Cita Chicago Style (17a ed.)

Walker, Kathryn M., y Linda Croswhite Cavanaugh. Computer Security Policies and Sunscreen Firewalls. Upper Saddle River, New Jersey: Sun Microsystems, 1998.

Cita MLA (9a ed.)

Walker, Kathryn M., y Linda Croswhite Cavanaugh. Computer Security Policies and Sunscreen Firewalls. Sun Microsystems, 1998.