APA (7th ed.) Citation

Keller, S. Archivmaterialien zu Stefan Keller, 1958-.

Chicago Style (17th ed.) Citation

Keller, Stefan. Archivmaterialien Zu Stefan Keller, 1958-.

MLA (9th ed.) Citation

Keller, Stefan. Archivmaterialien Zu Stefan Keller, 1958-.

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