Cita APA (7th ed.)

Williamson, T., & Trust, A. (1987). On knowledge of the unknowable. Blackwell Publishing.

Cita Chicago (17th ed.)

Williamson, T., i Analysis Trust. On Knowledge of the Unknowable. Blackwell Publishing, 1987.

Cita MLA (9th ed.)

Williamson, T., i Analysis Trust. On Knowledge of the Unknowable. Blackwell Publishing, 1987.