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|a spa
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| 094 |
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| 100 |
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|a Torres, Julia Mercedes
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| 245 |
|
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|a Presencia del boro en aguas de riego y su toxicidad en plantaciones de maíz
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| 260 |
|
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|a San Salvador :
|b Universidad de El Salvador,
|c 1965
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| 300 |
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|a 22 h.
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| 502 |
|
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|a Tesis ([Doctor en Química y Farmacia]) -- Universidad de El Salvador
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| 592 |
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| 592 |
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|a Materiales y métodos
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| 592 |
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|a Resultados experimentales y discusión
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|a bc_mercy
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| 992 |
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|a 28/07/2006
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| 942 |
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