APA (7th ed.) Citation

Cisco Systems, Inc, Mason, A. A., & Leitch, M. C. (2010). CCNP security secure 642-637 quick reference (1st edition.). Cisco Press.

Chicago Style (17th ed.) Citation

Cisco Systems, Inc, Andrew Author Mason, and Max Contributor Leitch. CCNP Security Secure 642-637 Quick Reference. 1st edition. [Place of publication not identified]: Cisco Press, 2010.

MLA (9th ed.) Citation

Cisco Systems, Inc, et al. CCNP Security Secure 642-637 Quick Reference. 1st edition. Cisco Press, 2010.