APA (7th ed.) Citation

Cisco Systems, Inc, & Cisco Networking Academy Program. (2005). Cisco Networking Academy Program: CCNA 1 and 2 companion guide (Rev. Third edition.). Cisco Press.

Chicago Style (17th ed.) Citation

Cisco Systems, Inc, and Cisco Networking Academy Program. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. Rev. Third edition. Indianapolis, Ind: Cisco Press, 2005.

MLA (8th ed.) Citation

Cisco Systems, Inc, and Cisco Networking Academy Program. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. Rev. Third edition. Cisco Press, 2005.