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|a 92 4 153023 5
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| 040 |
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|a Sistema de Bibliotecas de UNAN-LEON
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| 245 |
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|b 2,2-dichloro-I,I,I-trifluoroethane (HCFC-123) / World Health Organization ; first draft prepared by S. Kristensen, S. Batt and D. Willcocks
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| 260 |
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|a Geneva : WHO
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| 300 |
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|a iv, 31 p.
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| 650 |
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|a 1.CLOROFLUOROCARBONOS 2.FACTORES DE RIESGO 3.EXPOSICIÓN AMBIENTAL 4.EXPOSICIÓN OCUPACIONAL -TOXICIDAD
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| 700 |
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|a III. Willcocks, D. I. Kristensen, S. II. Batt, S.
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| 999 |
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|c 11269
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