Williamson, T., & O'Hear, A. (2009). Knowledge of counterfactuals. Cambridge University Press.
芝加哥风格引文Williamson, T., 与 A. O'Hear. Knowledge of Counterfactuals. Cambridge University Press, 2009.
MLA引文Williamson, T., 与 A. O'Hear. Knowledge of Counterfactuals. Cambridge University Press, 2009.
警告：这些引文格式不一定是100％准确.