Παραπομπή σε μορφή APA (7η εκδ.)

Cisco Networking Academy Program & Cisco Systems, Inc. (2003). Cisco Networking Academy Program: CCNA 3 and 4 companion quide (3rd ed.). Cisco Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cisco Networking Academy Program και Inc Cisco Systems. Cisco Networking Academy Program: CCNA 3 and 4 Companion Quide. 3rd ed. Indianapolis, Ind: Cisco Press, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

Cisco Networking Academy Program και Inc Cisco Systems. Cisco Networking Academy Program: CCNA 3 and 4 Companion Quide. 3rd ed. Cisco Press, 2003.