APA (7th ed.) Citation

Syngress, Liu, D., Miller, S., Lucas, M., Singh, A., & Davis, J. (2006). Firewall Policies and VPN Configurations (1st edition.). Syngress.

Chicago Style (17th ed.) Citation

Syngress, Dale Liu, Stephanie Miller, Mark Lucas, Abhishek Singh, and Jennifer Davis. Firewall Policies and VPN Configurations. 1st edition. Syngress, 2006.

MLA (9th ed.) Citation

Syngress, et al. Firewall Policies and VPN Configurations. 1st edition. Syngress, 2006.