Cisco Networking Academy Program., & Cisco Systems, I. (2003). Cisco Networking Academy Program: CCNA 1 and 2 companion guide (3rd ed.). Indianapolis, Ind.: Cisco.
استشهاد بنمط شيكاغوCisco Networking Academy Program., و Inc Cisco Systems. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. 3rd ed. Indianapolis, Ind.: Cisco, 2003.
MLA استشهادCisco Networking Academy Program., و Inc Cisco Systems. Cisco Networking Academy Program: CCNA 1 and 2 Companion Guide. 3rd ed. Indianapolis, Ind.: Cisco, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.