APA (7th ed.) Citation

Thomas, A., & McInerny, R. (1998). Selected writings. Penguin Books.

Chicago Style (17th ed.) Citation

Thomas, Aquinas, and Ralph McInerny. Selected Writings. London ; New York: Penguin Books, 1998.

MLA (9th ed.) Citation

Thomas, Aquinas, and Ralph McInerny. Selected Writings. Penguin Books, 1998.