Roland, J. F. (2003). CCSP cisco secure VPN exam certification guide: CCSP self-study. Indianapolis: Cisco Press.
シカゴスタイル引用形Roland, John F. CCSP Cisco Secure VPN Exam Certification Guide: CCSP Self-study. Indianapolis: Cisco Press, 2003.
MLA引用形式Roland, John F. CCSP Cisco Secure VPN Exam Certification Guide: CCSP Self-study. Indianapolis: Cisco Press, 2003.
警告: この引用は必ずしも正確ではありません.