Cita APA (7th ed.)

Nagel, T. (1979). Mortal questions. C.U.Pr.

Cita Chicago (17th ed.)

Nagel, Thomas. Mortal Questions. Cambridge: C.U.Pr, 1979.

Cita MLA (9th ed.)

Nagel, Thomas. Mortal Questions. C.U.Pr, 1979.