Cita APA (7a ed.)
ebrary, Inc, Birke, D., Butter, M., & Köppe, T. (2011). Counterfactual thinking-- counterfactual writing. De Gruyter.
Cita Chicago Style (17a ed.)
ebrary, Inc, Dorothee Birke, Michael Butter, y Tilmann Köppe. Counterfactual Thinking-- Counterfactual Writing. Berlin ; Boston: De Gruyter, 2011.
Cita MLA (9a ed.)
ebrary, Inc, et al. Counterfactual Thinking-- Counterfactual Writing. De Gruyter, 2011.
Precaución: Estas citas no son 100% exactas.