APA (7th ed.) Citation

Helmke, A. (2019). Archivmaterialien zu Andreas Helmke, 1945-.

Chicago Style (17th ed.) Citation

Helmke, Andreas. Archivmaterialien Zu Andreas Helmke, 1945-. 2019.

MLA (9th ed.) Citation

Helmke, Andreas. Archivmaterialien Zu Andreas Helmke, 1945-. 2019.

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