APA (7th ed.) Citation

Obst, H. Archivmaterialien zu Helmut Obst, 1940-.

Chicago Style (17th ed.) Citation

Obst, Helmut. Archivmaterialien Zu Helmut Obst, 1940-.

MLA (9th ed.) Citation

Obst, Helmut. Archivmaterialien Zu Helmut Obst, 1940-.

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