
- Author: Dr. Bruno P. Kremer (auth.)
- Language: German
- Year: 2010

Weltbilder
pdf
- Author: Hans Gebhardt Helmuth Kiesel (auth.) Prof. Dr. Hans Gebhardt Prof. Dr. Helmuth Kiesel (eds.)
- Language: German
- Year: 2004

- Author: Krauß-Meldau Joseph Krauß Dr. Walter Stein (auth.)
- Language: German
- Year: 1952

- Author: Dr. Dr. h. c. Carl W. Correns (auth.)
- Language: German
- Year: 1968

Gewässerkunde
pdf
- Author: Dr. Walter Wundt (auth.)
- Language: German
- Year: 1953

- Author: Prof. Dr. Walter Hellmich (auth.)
- Language: German
- Year: 1965

- Author: Georg Greim (auth.)
- Language: German
- Year: 1939

- Author: A. Schmauß (auth.)
- Language: German
- Year: 1936

- Author: Josef Rink (auth.)
- Language: German
- Year: 1938