Cita APA (7a ed.)

Ehring, D. (1997). Causation and persistence: A theory of causation. Oxford University Press.

Cita Chicago Style (17a ed.)

Ehring, Douglas. Causation and Persistence: A Theory of Causation. New York [etc.]: Oxford University Press, 1997.

Cita MLA (9a ed.)

Ehring, Douglas. Causation and Persistence: A Theory of Causation. Oxford University Press, 1997.