APA (7th ed.) Citation

Ehlers, O. E. Archivmaterialien zu Otto Ehrenfried Ehlers, 1855-1895.

Chicago Style (17th ed.) Citation

Ehlers, Otto Ehrenfried. Archivmaterialien Zu Otto Ehrenfried Ehlers, 1855-1895.

MLA (9th ed.) Citation

Ehlers, Otto Ehrenfried. Archivmaterialien Zu Otto Ehrenfried Ehlers, 1855-1895.

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