APA (7th ed.) Citation

Valentine, M. A., Whitaker, A. C., & Barker, K. C. (2013). Cisco CCNA - Routing and Switching 200-120 (4th ed.). Cisco Press.

Chicago Style (17th ed.) Citation

Valentine, Michael Author, Andrew Contributor Whitaker, and Keith Contributor Barker. Cisco CCNA - Routing and Switching 200-120. 4th ed. [Place of publication not identified]: Cisco Press, 2013.

MLA (9th ed.) Citation

Valentine, Michael Author, et al. Cisco CCNA - Routing and Switching 200-120. 4th ed. Cisco Press, 2013.