Testing plant materials for detection of oxygen-deficient water in ponds.
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| Format: | Texto biblioteca |
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1968
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| Subjects: | FISH PONDS, WATER, OXYGEN, PLANTS, TESTING, WATER ANALYSIS, ETANG DE PISCICULTURE, EAU, OXYGENE, PLANTE, TESTAGE, ESTANQUES PISCICOLAS, AGUA, OXIGENO, PLANTAS, ENSAYO, ANALYSE DE L'EAU, ANALISIS DE AGUA, |
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