Cita APA (7a ed.)

Matei, C. (2012). CCNP Security VPN 642-648 quick reference (1st edition.). Cisco Press.

Cita Chicago Style (17a ed.)

Matei, Cristian. CCNP Security VPN 642-648 Quick Reference. 1st edition. Indianapolis, Ind.: Cisco Press, 2012.

Cita MLA (9a ed.)

Matei, Cristian. CCNP Security VPN 642-648 Quick Reference. 1st edition. Cisco Press, 2012.