Deismireacht APA

Benjamin, H. (2003). CCIE security exam certification guide: CCIE self-study. Indianapolis, IN: Cisco Press.

Trích dẫn kiểu Chicago

Benjamin, Henry. CCIE Security Exam Certification Guide: CCIE Self-study. Indianapolis, IN: Cisco Press, 2003.

Deismireacht MLA

Benjamin, Henry. CCIE Security Exam Certification Guide: CCIE Self-study. Indianapolis, IN: Cisco Press, 2003.

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