APA (7th ed.) Citation

(1939). Zollgesetz (ZG). Heymanns.

Chicago Style (17th ed.) Citation

Zollgesetz (ZG). Berlin: Heymanns, 1939.

MLA (9th ed.) Citation

Zollgesetz (ZG). Heymanns, 1939.

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