APA (7th ed.) Citation

Lewis. (2006). Switching Basics and Intermediate Routing: CCNA 3 Companion Guide. Cisco Press.

Chicago Style (17th ed.) Citation

Lewis. Switching Basics and Intermediate Routing: CCNA 3 Companion Guide. Cisco Press, 2006.

MLA (8th ed.) Citation

Lewis. Switching Basics and Intermediate Routing: CCNA 3 Companion Guide. Cisco Press, 2006.

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