APA (7th ed.) Citation

Hay, A., Giannoulis, P., & Hay, K. (2009). Nokia firewall, VPN, and IPSO configuration guide (1st edition.). Syngress Pub.

Chicago Style (17th ed.) Citation

Hay, Andrew, Peter Giannoulis, and Keli Hay. Nokia Firewall, VPN, and IPSO Configuration Guide. 1st edition. Burlington, MA: Syngress Pub, 2009.

MLA (9th ed.) Citation

Hay, Andrew, et al. Nokia Firewall, VPN, and IPSO Configuration Guide. 1st edition. Syngress Pub, 2009.