APA (7th ed.) Citation

Matei, C. (2011). CCNP Security VPN 642-647 Quick Reference (1st edition.). Cisco Press.

Chicago Style (17th ed.) Citation

Matei, Cristian. CCNP Security VPN 642-647 Quick Reference. 1st edition. Cisco Press, 2011.

MLA (9th ed.) Citation

Matei, Cristian. CCNP Security VPN 642-647 Quick Reference. 1st edition. Cisco Press, 2011.

Warning: These citations may not always be 100% accurate.