APA (7th ed.) Citation

Ehrhardt, H. E. Archivmaterialien zu Helmut E. Ehrhardt, 1914-1997.

Chicago Style (17th ed.) Citation

Ehrhardt, Helmut E. Archivmaterialien Zu Helmut E. Ehrhardt, 1914-1997.

MLA (9th ed.) Citation

Ehrhardt, Helmut E. Archivmaterialien Zu Helmut E. Ehrhardt, 1914-1997.

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