Una gota de agua
Una gota de agua
Voir una gota de agua FrenchStream. 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.
- Genre: Documentaire
- Pays: Puerto Rico
- Réalisateur: Jack Delano
- Jeter: Amílcar Tirado,
