APA (7th ed.) Citation

Appel, H. (2019). Archivmaterialien zu Heinrich Appel, 1867-1937.

Chicago Style (17th ed.) Citation

Appel, Heinrich. Archivmaterialien Zu Heinrich Appel, 1867-1937. 2019.

MLA (8th ed.) Citation

Appel, Heinrich. Archivmaterialien Zu Heinrich Appel, 1867-1937. 2019.

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