Cita APA (7th ed.)

Goncalves, M. (1997). Protecting your Web site with firewalls. Prentice Hall.

Cita Chicago (17th ed.)

Goncalves, Marcus. Protecting Your Web Site with Firewalls. Upper Saddle River, N. J: Prentice Hall, 1997.

Cita MLA (9th ed.)

Goncalves, Marcus. Protecting Your Web Site with Firewalls. Prentice Hall, 1997.