APA (7th ed.) Citation

Class, H. (1920). 1914-1919. Weicher.

Chicago Style (17th ed.) Citation

Class, Heinrich. 1914-1919. Leipzig: Weicher, 1920.

MLA (8th ed.) Citation

Class, Heinrich. 1914-1919. Weicher, 1920.

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