APA (7th ed.) Citation

(1940). 1866-1940. Tjeenk Willink.

Chicago Style (17th ed.) Citation

1866-1940. Tjeenk Willink, 1940.

MLA (8th ed.) Citation

1866-1940. Tjeenk Willink, 1940.

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