Pieper, J. (1961). Sobre la esperanza (3a ed.). Rialp.
Chicago Style (17th ed.) CitationPieper, Josef. Sobre La Esperanza. 3a ed. Madrid: Rialp, 1961.
MLA (9th ed.) CitationPieper, Josef. Sobre La Esperanza. 3a ed. Rialp, 1961.
Warning: These citations may not always be 100% accurate.