Cita APA (7a ed.)

O'Brien, T. C. (1960). Metaphysics and the existence of God. Thomist Press.

Cita Chicago Style (17a ed.)

O'Brien, Thomas C. Metaphysics and the Existence of God. Washington: Thomist Press, 1960.

Cita MLA (9a ed.)

O'Brien, Thomas C. Metaphysics and the Existence of God. Thomist Press, 1960.