- Author: Ernst Hartwig Kantorowicz
- Language: English
- Year: 1997
- Author: Ernst Hartwig Kantorowicz
- Language: English
- Year: 1946
- Author: Ernst Hartwig Kantorowicz
- Language: Spanish
- Year: 2012
- Author: Ernst Hartwig Kantorowicz E. O. Lorimer
- Language: English
- Year: 1957
- Author: Ernst Hartwig Kantorowicz
- Language: English
- Year: 1957