- Author: Ludwig von Bertalanffy
- Language: Spanish
- Year: 1976
- Author: Ludwig von Bertalanffy
- Language: Portuguese
- Year: 2010
- Author: Ludwig von Bertalanffy
- Language: English
- Year: 1969
- Author: Ludwig Von Bertalanffy
- Language: English
- Year: 1969
- Author: Ludwig Von Bertalanffy
- Language: English
- Year: 1984
- Author: Prof. Dr. Ludwig von Bertalanffy Prof. Dr. sc. nat. Walter Beier Dr. sc. nat. Reinhard Laue (auth.)
- Language: German
- Year: 1977
- Author: Prof. Dr. Ludwig von Bertalanffy (auth.)
- Language: German
- Year: 1946
- Author: Prof. Dr. Ludwig von Bertalanffy Prof. Dr. sc. nat. Walter Beier Dr. sc. nat. Reinhard Laue (auth.)
- Language: German
- Year: 1977
- Author: Ludwig Von Bertalanffy
- Language: English
- Year: 1968
- Author: Ludwig Von Bertalanffy
- Language: English
- Year: 1984