Hucaby, D. Cisco CCNP Switching Exam Certification Guide: The Official Study Guide for CCNP and CCDP Switching Exam #640-504. Cisco Press.
Citace podle Chicago (17th ed.)Hucaby, David. Cisco CCNP Switching Exam Certification Guide: The Official Study Guide for CCNP and CCDP Switching Exam #640-504. Cisco Press.
Citace podle MLA (8th ed.)Hucaby, David. Cisco CCNP Switching Exam Certification Guide: The Official Study Guide for CCNP and CCDP Switching Exam #640-504. Cisco Press.
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