WATKINS, M; WALLACE, K. 2008. CCNA security: Official exam certification guide. Indianapolis: Cisco Press.
Citace podle APA (7th ed.)Watkins, M., & Wallace, K. (2008). CCNA security: Official exam certification guide. Cisco Press.
Citace podle Chicago (17th ed.)Watkins, Michael, a Kevin Wallace. CCNA Security: Official Exam Certification Guide. Indianapolis: Cisco Press, 2008.
Citace podle MLA (9th ed.)Watkins, Michael, a Kevin Wallace. CCNA Security: Official Exam Certification Guide. Cisco Press, 2008.
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