Cisco Systems, I. (2004). Fundamentals of network security: Lab companion and workbook. Indianpolis, IN: Cisco Press.
استشهاد بنمط شيكاغوCisco Systems, Inc. Fundamentals of Network Security: Lab Companion and Workbook. Indianpolis, IN: Cisco Press, 2004.
MLA استشهادCisco Systems, Inc. Fundamentals of Network Security: Lab Companion and Workbook. Indianpolis, IN: Cisco Press, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.