Cita APA (7a ed.)

Burns, D. A., Adesina, O. C., & Barker, K. C. (2012). CCNP security IPS 642-627 official cert guide (1st edition.). Cisco Press.

Cita Chicago Style (17a ed.)

Burns, David Author, Odunayo Contributor Adesina, y Keith Contributor Barker. CCNP Security IPS 642-627 Official Cert Guide. 1st edition. [Place of publication not identified]: Cisco Press, 2012.

Cita MLA (9a ed.)

Burns, David Author, et al. CCNP Security IPS 642-627 Official Cert Guide. 1st edition. Cisco Press, 2012.