Una gota de agua
Una gota de agua
Guarda una gota de agua su StreamingCommunity. 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.
- Genere: Documentario
- Nazione: Puerto Rico
- Direttore: Jack Delano
- Cast: Amílcar Tirado,
