- Author: Hermann Lotze
- Language: German
- Year: 1868
- Author: Rudolf Hermann Lotze Franco De Vincenzis (editor) Stefano Poggi (editor)
- Language: Italian
- Year: 2010
- Author: Shyam Singh Yadav Robert Redden Jerry L. Hatfield Hermann Lotze-Campen Anthony Hall
- Language: English
- Year: 2011
- Author: Hermann Lotze
- Language: English
- Year: 1884
- Author: Hermann Lotze
- Language: English
- Author: Hermann Lotze
- Language: English