- Cărți electroniceSynthetic Tannins, Their Synthesis, Industrial Production and ApplicationFini Georges Alexander Enna
- Cărți electroniceSynthetic Tannins, Their Synthesis, Industrial Production and ApplicationGeorg Grasser
- Cărți electroniceSynthetic Tannins, Their Synthesis, Industrial Production and ApplicationFini Georges Alexander Enna
- Cărți electroniceSynthetic Tannins, Their Synthesis, Industrial Production and ApplicationGeorg Grasser