Cita APA (7a ed.)

Grayling, A. C. (2008). Scepticism and the possibility of knowledge. Continuum.

Cita Chicago Style (17a ed.)

Grayling, A. C. Scepticism and the Possibility of Knowledge. London ; New York: Continuum, 2008.

Cita MLA (9a ed.)

Grayling, A. C. Scepticism and the Possibility of Knowledge. Continuum, 2008.