APA引文

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.

Trích dẫn kiểu Chicago

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

MLA引文

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