Una gota de agua (1949)
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.
- Released
- 1949-04-13
- Genres
- Documentary
- Runtime
- 10 min
- Status
- Released
- Directed / written by
- Jack Delano, Edwin Rosskam
Cast
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