एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

Cisco Networking Academy Program., और Inc Cisco Systems. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. Rev. 3rd ed. Indianapolis, Ind.: Cisco Press, 2005.

एमएलए उद्धरण

Cisco Networking Academy Program., और Inc Cisco Systems. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. Rev. 3rd ed. Indianapolis, Ind.: Cisco Press, 2005.