APA (7th ed.) Citation

Leclercq, J., & Pieper, J. (1953). De la vida serena. Rialp.

Chicago Style (17th ed.) Citation

Leclercq, Jacques, and Josef Pieper. De La Vida Serena. Madrid: Rialp, 1953.

MLA (9th ed.) Citation

Leclercq, Jacques, and Josef Pieper. De La Vida Serena. Rialp, 1953.

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