APA (7th ed.) Citation

Pieper, J., & Manyà, J. B. (1951). Sobre la esperanza. Rialp.

Chicago Style (17th ed.) Citation

Pieper, Josef, and Joan Baptista Manyà. Sobre La Esperanza. Madrid: Rialp, 1951.

MLA (9th ed.) Citation

Pieper, Josef, and Joan Baptista Manyà. Sobre La Esperanza. Rialp, 1951.

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