APA (7th ed.) Zitazioa
Pieper, J. (1999). The silence of St. Thomas: Three essays. St. Augustine's Press.
Chicago Style (17th ed.) Zitazioa
Pieper, Josef. The Silence of St. Thomas: Three Essays. South Bend (Indiana): St. Augustine's Press, 1999.
MLA (9th ed.) Zitazioa
Pieper, Josef. The Silence of St. Thomas: Three Essays. St. Augustine's Press, 1999.
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