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00790nam a2200217 u 4500 |
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000309425 |
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20110720143301.0 |
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s1984 s1984 cr ||||| eng |
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|a 66267
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|a Sistema de Bibliotecas de Universidad de Costa Rica
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|a eng
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|a 628.53
|b O15o
|2 00
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|a Occupational esposure limits for airborne toxic substances :
|b a tabular compilation of values from selected countries. --
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| 260 |
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|a San José, C.R. :
|b Biblioteca, Documentación e Información, Universidad de Costa Rica,
|c 1984.
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| 300 |
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|a [290] hojas ;
|c 22 x 31 cm
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| 650 |
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|a CONTAMINACION DEL AIRE
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| 650 |
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|v NORMAS
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| 650 |
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|v TABLAS, CALCULO, ETC.
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| 912 |
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|a 20-JUL-2011 - GOMEZ PANIAGUA, LUZ MARIA
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| 949 |
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|a LA-GA b.KV
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| 916 |
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|a Registros del LS-2000
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