APA (7th ed.) Citation

De Wolff, S. (1932). De crisis. Amsterdam: SDAP.

Chicago Style (17th ed.) Citation

De Wolff, S. De Crisis. Amsterdam: SDAP, 1932.

MLA (8th ed.) Citation

De Wolff, S. De Crisis. Amsterdam: SDAP, 1932.

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