APA (7th ed.) Citation

(1931). Danzigs Hamn. [s.n.].

Chicago Style (17th ed.) Citation

Danzigs Hamn. Gdańsk: [s.n.], 1931.

MLA (9th ed.) Citation

Danzigs Hamn. [s.n.], 1931.

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