Una gota de agua
0
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1949-04-13
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Documentary
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.
Featured Crew
| José R. Ramírez | Music |
| Jesús Figueroa | Assistant Camera |
| Jack Delano | Cinematography |
| Jack Delano | Director |
| Edwin Rosskam | Screenplay |
