APA (7th ed.) Citation

Barker, K. (2012). CCNA security live lessons: A hands-on guide to implementing security on Cisco routers and switches. Pearson Certification.

Chicago Style (17th ed.) Citation

Barker, Keith. CCNA Security Live Lessons: A Hands-on Guide to Implementing Security on Cisco Routers and Switches. [Place of publication not identified]: Pearson Certification, 2012.

MLA (9th ed.) Citation

Barker, Keith. CCNA Security Live Lessons: A Hands-on Guide to Implementing Security on Cisco Routers and Switches. Pearson Certification, 2012.