Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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