Benjamin, H. (2003). CCIE security exam certification guide: CCIE self-study. Indianapolis, IN: Cisco Press.
शिकागो स्टाइल उद्धरणBenjamin, Henry. CCIE Security Exam Certification Guide: CCIE Self-study. Indianapolis, IN: Cisco Press, 2003.
एमएलए उद्धरणBenjamin, Henry. CCIE Security Exam Certification Guide: CCIE Self-study. Indianapolis, IN: Cisco Press, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.