Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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