APA (7th ed.) Citation

Helmes, G. Archivmaterialien zu Günter Helmes, 1954-.

Chicago Style (17th ed.) Citation

Helmes, Günter. Archivmaterialien Zu Günter Helmes, 1954-.

MLA (9th ed.) Citation

Helmes, Günter. Archivmaterialien Zu Günter Helmes, 1954-.

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