APA (7th ed.) Citation

Piens, G. Archivmaterialien zu Gerhard Piens, 1921-.

Chicago Style (17th ed.) Citation

Piens, Gerhard. Archivmaterialien Zu Gerhard Piens, 1921-.

MLA (9th ed.) Citation

Piens, Gerhard. Archivmaterialien Zu Gerhard Piens, 1921-.

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