APA (7th ed.) Citation

Freytag, H. (1919). Thorn a German city. [s.n.].

Chicago Style (17th ed.) Citation

Freytag, Hermann. Thorn a German City. Danzig: [s.n.], 1919.

MLA (9th ed.) Citation

Freytag, Hermann. Thorn a German City. [s.n.], 1919.

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