APA (7th ed.) Citation

(1966). Twintig jaar Humanistisch verbond. [s.n.].

Chicago Style (17th ed.) Citation

Twintig Jaar Humanistisch Verbond. [s.n.], 1966.

MLA (8th ed.) Citation

Twintig Jaar Humanistisch Verbond. [s.n.], 1966.

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