Cisco Networking Academy Program. (2001). Cisco Networking Academy Program: Second-year companion guide (Second edition.). Editorial Cisco Press.
Chicago-viite (17. p.)Cisco Networking Academy Program. Cisco Networking Academy Program: Second-year Companion Guide. Second edition. Indianápolis: Editorial Cisco Press, 2001.
MLA-viite (8. p.)Cisco Networking Academy Program. Cisco Networking Academy Program: Second-year Companion Guide. Second edition. Editorial Cisco Press, 2001.
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