Παραπομπή APA

Cisco Systems, I. (2004). Fundamentals of network security: Lab companion and workbook. Indianpolis, IN: Cisco Press.

Παραπομπή Chicago Style

Cisco Systems, Inc. Fundamentals of Network Security: Lab Companion and Workbook. Indianpolis, IN: Cisco Press, 2004.

Παραπομπή MLA

Cisco Systems, Inc. Fundamentals of Network Security: Lab Companion and Workbook. Indianpolis, IN: Cisco Press, 2004.

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