APA (7th ed.) Citation

Shinder. (2007). Best damn firewall book period (2nd ed.). Syngress.

Chicago Style (17th ed.) Citation

Shinder. Best Damn Firewall Book Period. 2nd ed. Burlington, Mass: Syngress, 2007.

MLA (9th ed.) Citation

Shinder. Best Damn Firewall Book Period. 2nd ed. Syngress, 2007.

Warning: These citations may not always be 100% accurate.