APA (7th ed.) Citation

Pieper, J. (1961). Sobre la esperanza (3a ed.). Rialp.

Chicago Style (17th ed.) Citation

Pieper, Josef. Sobre La Esperanza. 3a ed. Madrid: Rialp, 1961.

MLA (9th ed.) Citation

Pieper, Josef. Sobre La Esperanza. 3a ed. Rialp, 1961.

Warning: These citations may not always be 100% accurate.