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.
- Release Date: 1949-04-13
- Runtime: 0h 10min
- Production Company: Comisión de Parques y Recreos Públicos de Puerto Rico
- Production Country:
Puerto Rico
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Director:
Jack Delano
- Writer:
Edwin Rosskam