Audio-visual aids for fertilizer use extension
6 ref.
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Main Authors: | , , |
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Format: | Texto biblioteca |
Language: | |
Published: |
1975
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Subjects: | FAO NORAD, EXTENSION ACTIVITIES, FERTILIZERS, AUDIOVISUAL AIDS, TANZANIA, VULGARISATION, ENGRAIS, MOYEN AUDIOVISUEL, EXTENSION, ABONOS, MEDIOS AUDIOVISUALES, TANZANIE, |
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Summary: | 6 ref. |
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