APA (7th ed.) Citation

Willems, H. Archivmaterialien zu Herbert Willems, 1956-.

Chicago Style (17th ed.) Citation

Willems, Herbert. Archivmaterialien Zu Herbert Willems, 1956-.

MLA (9th ed.) Citation

Willems, Herbert. Archivmaterialien Zu Herbert Willems, 1956-.

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