APA (7th ed.) Citation

Helbig, L. Archivmaterialien zu Ludwig Helbig, 1925-2009.

Chicago Style (17th ed.) Citation

Helbig, Ludwig. Archivmaterialien Zu Ludwig Helbig, 1925-2009.

MLA (9th ed.) Citation

Helbig, Ludwig. Archivmaterialien Zu Ludwig Helbig, 1925-2009.

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