APA (7th ed.) Citation

(1960). Regelmaat en norm. Tjeenk Willink.

Chicago Style (17th ed.) Citation

Regelmaat En Norm. Tjeenk Willink, 1960.

MLA (8th ed.) Citation

Regelmaat En Norm. Tjeenk Willink, 1960.

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