APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.