APA (7th ed.) Citation
Pieper, J. (1980). Las virtudes fundamentales (2a ed.). Rialp.
Chicago Style (17th ed.) Citation
Pieper, Josef. Las Virtudes Fundamentales. 2a ed. Madrid: Rialp, 1980.
MLA (9th ed.) Citation
Pieper, Josef. Las Virtudes Fundamentales. 2a ed. Rialp, 1980.
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