Cita APA (7th ed.)

Williamson, T., & O'Hear, A. (2009). Knowledge of counterfactuals. Cambridge University Press.

Cita Chicago (17th ed.)

Williamson, T., i A. O'Hear. Knowledge of Counterfactuals. Cambridge University Press, 2009.

Cita MLA (9th ed.)

Williamson, T., i A. O'Hear. Knowledge of Counterfactuals. Cambridge University Press, 2009.