Una gota de agua
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1949
10min
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.
故事情节
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.
发行
13 April 1949
时长
10min
导演
类型
状态
Released
语言
Spanish
出品
Comisión de Parques y Recreos Públicos de Puerto Rico
主演
