APA (7th ed.) Citation

May, H. Archivmaterialien zu Helmut May, 1906-1993.

Chicago Style (17th ed.) Citation

May, Helmut. Archivmaterialien Zu Helmut May, 1906-1993.

MLA (9th ed.) Citation

May, Helmut. Archivmaterialien Zu Helmut May, 1906-1993.

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