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Una gota de agua

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.
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Genre: Documentaire

Jeter: Amílcar Tirado

Réalisateur: Jack Delano

Pays: Puerto Rico

Durée: 10 minutes

Qualité: HD

Libération: 1949

Una gota de agua (1949) - IMDb  6