APA استشهاد

Ruth Groff. (2013). Ontology revisited: Metaphysics in social and political philosophy. Routledge.

استشهاد بنمط شيكاغو

Ruth Groff. Ontology Revisited: Metaphysics in Social and Political Philosophy. London: Routledge, 2013.

MLA استشهاد

Ruth Groff. Ontology Revisited: Metaphysics in Social and Political Philosophy. Routledge, 2013.