Cita APA (7a ed.)
Goncalves, F. E. (2010). Building telephony systems with OpenSIPS 1.6: Build scalable and robust telephony systems using SIP. Packt Pub..
Cita Chicago Style (17a ed.)
Goncalves, Flavio E. Building Telephony Systems with OpenSIPS 1.6: Build Scalable and Robust Telephony Systems Using SIP. Birmingham, U.K.: Packt Pub., 2010.
Cita MLA (9a ed.)
Goncalves, Flavio E. Building Telephony Systems with OpenSIPS 1.6: Build Scalable and Robust Telephony Systems Using SIP. Packt Pub., 2010.
Precaución: Estas citas no son 100% exactas.