APA (7th ed.) Citation

Thomas, T. M. (2004). Network security first-step. Cisco Press.

Chicago Style (17th ed.) Citation

Thomas, Thomas M. Network Security First-step. Indianapolis, Ind: Cisco Press, 2004.

MLA (9th ed.) Citation

Thomas, Thomas M. Network Security First-step. Cisco Press, 2004.

Warning: These citations may not always be 100% accurate.