Cita APA (7a ed.)

Westerhoff, J. (2005). Ontological categories: Their nature and significance. Clarendon Press.

Cita Chicago Style (17a ed.)

Westerhoff, Jan. Ontological Categories: Their Nature and Significance. Oxford: Clarendon Press, 2005.

Cita MLA (9a ed.)

Westerhoff, Jan. Ontological Categories: Their Nature and Significance. Clarendon Press, 2005.