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|a 668.65
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|a Rogel Magaña, Edith Carlota
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| 245 |
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|a Evaluación de la extracción con diferentes solventes y del efecto insecticida de los extractos vegetales de viborana (asclepias curassavica)
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| 260 |
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|a San Salvador :
|b Universidad de El Salvador,
|c 1987
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| 300 |
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|a 122 h. ;
|b il.
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| 502 |
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|a Tesis (Ing. Químico) -- Universidad de El Salvador
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| 650 |
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|a SOLVENTES
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| 650 |
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|a INSECTICIDAS
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