APA (7th ed.) Citation

Köhncke, O. (1888). Wibert von Ravenna, papst Clemens III.

Chicago Style (17th ed.) Citation

Köhncke, Otto. Wibert Von Ravenna, Papst Clemens III. Leipzig, 1888.

MLA (8th ed.) Citation

Köhncke, Otto. Wibert Von Ravenna, Papst Clemens III. 1888.

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