Cita APA (7a ed.)

Dryburgh, L., & Hewett, J. (2005). Signaling System No. 7 (SS7/C7): Protocol, architecture, and services. Cisco.

Cita Chicago Style (17a ed.)

Dryburgh, Lee, y Jeff Hewett. Signaling System No. 7 (SS7/C7): Protocol, Architecture, and Services. Indianapolis, IN: Cisco, 2005.

Cita MLA (8a ed.)

Dryburgh, Lee, y Jeff Hewett. Signaling System No. 7 (SS7/C7): Protocol, Architecture, and Services. Cisco, 2005.