Singles, K. (2013). Alternate history: Playing with contingency and necessity. De Gruyter.
Chicago-viite (17. p.)Singles, Kathleen. Alternate History: Playing with Contingency and Necessity. Berlin ; Boston: De Gruyter, 2013.
MLA-viite (9. p.)Singles, Kathleen. Alternate History: Playing with Contingency and Necessity. De Gruyter, 2013.
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