Cita APA (7a ed.)

Hartpence, B. (2013). Packet guide to Voice over IP. O'Reilly.

Cita Chicago Style (17a ed.)

Hartpence, Bruce. Packet Guide to Voice over IP. Sebastopol, CA: O'Reilly, 2013.

Cita MLA (8a ed.)

Hartpence, Bruce. Packet Guide to Voice over IP. O'Reilly, 2013.