Protogaea
pdf
- Author: Gottfried Wilhelm Leibniz (editor), Claudine Cohen (editor), Andre Wakefield (editor)
- Language: English
- Year: 2008
- Author: Gottfried Wilhelm Leibniz (editor), G. E. Guhrauer (editor)
- Language: German
- Year: 1837
- Author: Gottfried W. Leibniz (editor), Clara Strack (editor)
- Language: German
- Year: 1967