Cisco Networking Academy Program., & Cisco Systems, I. (2003). Cisco Networking Academy Program: CCNA 3 and 4 companion guide (3rd ed.). Indianapolis, Ind.: Cisco.
Trích dẫn kiểu ChicagoCisco Networking Academy Program., và Inc Cisco Systems. Cisco Networking Academy Program: CCNA 3 and 4 Companion Guide. 3rd ed. Indianapolis, Ind.: Cisco, 2003.
Deismireacht MLACisco Networking Academy Program., và Inc Cisco Systems. Cisco Networking Academy Program: CCNA 3 and 4 Companion Guide. 3rd ed. Indianapolis, Ind.: Cisco, 2003.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.