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| 942 |
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| 094 |
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|a Navarrete Osorio, Guillermo Antonio
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| 245 |
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|a Mejoramiento de la producción de bálsamo en El Salvador
|
| 260 |
|
|
|a San Salvador :
|b Universidad de El Salvador,
|c 1971
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| 300 |
|
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|a 63 h
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| 502 |
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|a Tesis (Ing. Industrial) -- Universidad de El Salvador
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| 650 |
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|a BALSAMO-PRODUCCION
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