APA (7th ed.) Citation

(1919). Brieven over de arbeidersbeweging. Ruys.

Chicago Style (17th ed.) Citation

Brieven over De Arbeidersbeweging. Ruys, 1919.

MLA (8th ed.) Citation

Brieven over De Arbeidersbeweging. Ruys, 1919.

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