APA (7th ed.) Citation

Ockker, G. (1950). Caricature. . Trade union movement.

Chicago Style (17th ed.) Citation

Ockker, G. Caricature. . Trade Union Movement. 1950.

MLA (8th ed.) Citation

Ockker, G. Caricature. . Trade Union Movement. 1950.

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