Cita APA (7th ed.)

Strebe, M., & Perkins, C. L. (2000). Firewalls (First Edition.). Network Press : SYBEX.

Cita Chicago (17th ed.)

Strebe, Matthew, i Charles L. Perkins. Firewalls. First Edition. San Francisco: Network Press : SYBEX, 2000.

Cita MLA (9th ed.)

Strebe, Matthew, i Charles L. Perkins. Firewalls. First Edition. Network Press : SYBEX, 2000.