APA (7th ed.) Citation

Koch, H. Archivmaterialien zu Helmut Koch, 1932-.

Chicago Style (17th ed.) Citation

Koch, Helmut. Archivmaterialien Zu Helmut Koch, 1932-.

MLA (9th ed.) Citation

Koch, Helmut. Archivmaterialien Zu Helmut Koch, 1932-.

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