- Author: Paul Herrmann, Wilhelm Gustav Spruth
- Language: German
- Year: 2011
- Author: Paul Herrmann, Wilhelm Gustav Spruth, Udo Kebschull
- Language: German
- Year: 2009
- Author: Paul Herrmann
- Language: German
- Year: 2023
- Author: Paul Herrmann
- Language: German
- Year: 2023
- Author: Paul Herrmann
- Language: German
- Year: 2020
- Author: Paul Herrmann
- Language: German
- Year: 2020
- Author: Paul Herrmann
- Language: German
Conquest by man
pdf
- Author: Paul Herrmann
- Language: English
- Year: 1954
- Author: Paul Herrmann (Übers.)
- Language: German
- Year: 1923
- Author: Paul Herrmann
- Language: German
- Year: 1907