Una gota de agua
Overview
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.
Details
| Status: | Released |
|---|---|
| Release Date: | 1949-04-13 |
| Production: | Comisión de Parques y Recreos Públicos de Puerto Rico |