APA (7th ed.) Citation

Pieper, J. (1957). Glück und Kontemplation.

Chicago Style (17th ed.) Citation

Pieper, Josef. Glück Und Kontemplation. 1957.

MLA (9th ed.) Citation

Pieper, Josef. Glück Und Kontemplation. 1957.

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