Singles, K. (2013). Alternate history: Playing with contingency and necessity. De Gruyter.
芝加哥风格引文Singles, Kathleen. Alternate History: Playing with Contingency and Necessity. Berlin ; Boston: De Gruyter, 2013.
MLA引文Singles, Kathleen. Alternate History: Playing with Contingency and Necessity. De Gruyter, 2013.
警告：这些引文格式不一定是100％准确.