Cita APA (7a ed.)

Cisco Systems, Inc. Content Provider, Hucaby, D. A., Sequeira, A. C., & Garneau, D. C. (2012). CCNP security firewall 642-618 official cert guide (1st edition.). Cisco Press.

Cita Chicago Style (17a ed.)

Cisco Systems, Inc. Content Provider, Dave Author Hucaby, Anthony Contributor Sequeira, y Dave Contributor Garneau. CCNP Security Firewall 642-618 Official Cert Guide. 1st edition. [Place of publication not identified]: Cisco Press, 2012.

Cita MLA (9a ed.)

Cisco Systems, Inc. Content Provider, et al. CCNP Security Firewall 642-618 Official Cert Guide. 1st edition. Cisco Press, 2012.