Una gota de agua
Una gota de agua
Sledujte una gota de agua Kukaj-to. A drop of water is taken to a laboratory in San Juan, Puerto Rico to determine its purity. The film communicates scientific health information, such as the need to boil drinking water.
- Žánr: Dokumentární
- Země: Puerto Rico
- Ředitel: Jack Delano
- Obsazení: Amílcar Tirado,
