Cita APA (7a ed.)

Meggelen, J. V., Madsen, L., & Smith, J. (2007). Asterisk: The future of telephony (2nd ed.). O'Reilly.

Cita Chicago Style (17a ed.)

Meggelen, Jim Van, Leif Madsen, y Jared Smith. Asterisk: The Future of Telephony. 2nd ed. Beijing ; Sebastopol, California: O'Reilly, 2007.

Cita MLA (9a ed.)

Meggelen, Jim Van, et al. Asterisk: The Future of Telephony. 2nd ed. O'Reilly, 2007.