Tkacheva, O. (2013). Internet freedom & political space. RAND Corporation.
芝加哥风格引文Tkacheva, Olesya. Internet Freedom & Political Space. Santa Monica: RAND Corporation, 2013.
MLA引文Tkacheva, Olesya. Internet Freedom & Political Space. RAND Corporation, 2013.
警告：这些引文格式不一定是100％准确.