Cita APA (7a ed.)

Hale, B. (2013). Necessary beings: An essay on ontology, modality, and the relations between them. Oxford University Press.

Cita Chicago Style (17a ed.)

Hale, Bob. Necessary Beings: An Essay on Ontology, Modality, and the Relations Between Them. Oxford: Oxford University Press, 2013.

Cita MLA (9a ed.)

Hale, Bob. Necessary Beings: An Essay on Ontology, Modality, and the Relations Between Them. Oxford University Press, 2013.