APA (7th ed.) Citation

Rufi, A. W. (2007). Network security 1 and 2 companion guide. Cisco Press.

Chicago Style (17th ed.) Citation

Rufi, Antoon W. Network Security 1 and 2 Companion Guide. Indianapolis, Ind: Cisco Press, 2007.

MLA (8th ed.) Citation

Rufi, Antoon W. Network Security 1 and 2 Companion Guide. Cisco Press, 2007.