APA (7th ed.) Citation

Cisco Systems & Cisco Networking Academy Program. (2005). Cisco Networking Academy Program: CCNA 1 and 2 companion guide (3rd ed., rev.). Cisco Press.

Chicago Style (17th ed.) Citation

Cisco Systems and Cisco Networking Academy Program. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. 3rd ed., rev. Cisco Press, 2005.

MLA (8th ed.) Citation

Cisco Systems and Cisco Networking Academy Program. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. 3rd ed., rev. Cisco Press, 2005.