Cita APA (7th ed.)
Pieper, J. (1957). The Silence of St. Thomas: Three Essays. Pantheon Books.
Cita Chicago (17th ed.)
Pieper, Josef. The Silence of St. Thomas: Three Essays. Nueva York, EUA: Pantheon Books, 1957.
Cita MLA (9th ed.)
Pieper, Josef. The Silence of St. Thomas: Three Essays. Pantheon Books, 1957.
Atenció: Aquestes cites poden no estar 100% correctes.