Hjelm, J. (2008). Why IPTV?: Interactivity, technologies and services. Wiley.
芝加哥风格引文Hjelm, Johan. Why IPTV?: Interactivity, Technologies and Services. Chichester, U.K: Wiley, 2008.
MLA引文Hjelm, Johan. Why IPTV?: Interactivity, Technologies and Services. Wiley, 2008.
警告：这些引文格式不一定是100％准确.