Cita APA (7a ed.)

Safari Tech Books Online, Dryburgh, L. A., & Hewett, J. C. (2005). Signaling System No. 7 (SS7/C7): Protocol, architecture, and services (1st edition.). Cisco.

Cita Chicago Style (17a ed.)

Safari Tech Books Online, Lee Author Dryburgh, y Jeff Contributor Hewett. Signaling System No. 7 (SS7/C7): Protocol, Architecture, and Services. 1st edition. [Place of publication not identified]: Cisco, 2005.

Cita MLA (9a ed.)

Safari Tech Books Online, et al. Signaling System No. 7 (SS7/C7): Protocol, Architecture, and Services. 1st edition. Cisco, 2005.