APA (7th ed.) Citation

Soares, V., Neves, P., & Rodrigues, J. (2011). Past, present and future of IP telephony.

Chicago Style (17th ed.) Citation

Soares, V.N.G.J, P.A.C.S Neves, and J.J.P.C Rodrigues. Past, Present and Future of IP Telephony. 2011.

MLA (8th ed.) Citation

Soares, V.N.G.J, et al. Past, Present and Future of IP Telephony. 2011.