Home-made biogas (in China)
35 mm positive colour film, 184 frames, text 47 p. + 1 sound cassette in En
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| Main Authors: | , |
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| Format: | Texto biblioteca |
| Language: | |
| Published: |
Rome (Italy) FAO
1981
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| Subjects: | BIOGAS, EXTENSION ACTIVITIES, AUDIOVISUAL AIDS, BIOGAZ, VULGARISATION, MOYEN AUDIOVISUEL, EXTENSION, MEDIOS AUDIOVISUALES, |
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| Summary: | 35 mm positive colour film, 184 frames, text 47 p. + 1 sound cassette in En |
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