APA (7th ed.) Citation

Vachon, B., & Graziani, R. (2008). Accessing the WAN: CCNA exploration companion guide. Cisco Press.

Chicago Style (17th ed.) Citation

Vachon, Bob, and Rick Graziani. Accessing the WAN: CCNA Exploration Companion Guide. Indianapolis, Ind.: Cisco Press, 2008.

MLA (8th ed.) Citation

Vachon, Bob, and Rick Graziani. Accessing the WAN: CCNA Exploration Companion Guide. Cisco Press, 2008.