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00768nam a2200241 u 4500 |
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20110720143301.0 |
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s1989 s1989 sz ||||| eng |
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|a 9241542837
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|a 79351
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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|a 614.831.2
|b D277da
|2 00
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|a DDT and its derivatives-environmental aspects
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| 260 |
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|a Geneva,
|c 1989.
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| 300 |
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|a 48 páginas :
|b ilustraciones ;
|c 21 cm.--
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|a Environmental health criteria / Organización Mundial de la Salud
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| 504 |
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|a Bibliografia: p. 79-98
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| 650 |
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|a DDT (INSECTICIDA)
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| 650 |
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|a PLAGUICIDAS
|x ASPECTOS AMBIENTALES
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| 912 |
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|a 20-JUL-2011 - CATALOG, HE
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| 949 |
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|a YV-YV-YV
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| 916 |
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|a Registros del LS-2000
|