APA (7th ed.) Citation

Keller, H. Archivmaterialien zu Heidi Keller, 1945-.

Chicago Style (17th ed.) Citation

Keller, Heidi. Archivmaterialien Zu Heidi Keller, 1945-.

MLA (9th ed.) Citation

Keller, Heidi. Archivmaterialien Zu Heidi Keller, 1945-.

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