APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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