APA (7th ed.) Citation

(1926). Presumably poster on the occasion of the Volksentscheid über die Fürstenenteignung.

Chicago Style (17th ed.) Citation

Presumably Poster on the Occasion of the Volksentscheid über Die Fürstenenteignung. 1926.

MLA (8th ed.) Citation

Presumably Poster on the Occasion of the Volksentscheid über Die Fürstenenteignung. 1926.

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