APA (7th ed.) Citation

Heydt, A. v. d. Archivmaterialien zu August von der Heydt, 1851-1929.

Chicago Style (17th ed.) Citation

Heydt, August von der. Archivmaterialien Zu August Von Der Heydt, 1851-1929.

MLA (9th ed.) Citation

Heydt, August von der. Archivmaterialien Zu August Von Der Heydt, 1851-1929.

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