APA (7th ed.) Citation

Zimmermann, K. (1955). Reprint. From portfolio: "Politische Plakate der DDR".

Chicago Style (17th ed.) Citation

Zimmermann, Kurt. Reprint. From Portfolio: "Politische Plakate Der DDR". 1955.

MLA (8th ed.) Citation

Zimmermann, Kurt. Reprint. From Portfolio: "Politische Plakate Der DDR". 1955.

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