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|a spa
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| 100 |
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|a Reyes Umaña, Ricardo Antonio
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| 700 |
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|a Fernández, Sergio
|e Asesor
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| 245 |
|
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|a Análisis de pequeñas estructuras para riego / Ricardo Antonio Reyes Umaña; asesor Sergio Fernández
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| 260 |
|
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|a San Salvador :
|b Universidad de El Salvador,
|c 1967
|
| 300 |
|
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|a 83 h. : il. ;
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| 502 |
|
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|a Tesis (Ingeniero Civil) -- Universidad de El Salvador, San Salvador, 1967
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| 592 |
|
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|a Estructuras para distribución del agua
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| 592 |
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|a Canales
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| 592 |
|
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|a Cajas de distribución o división
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| 592 |
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|a Saltos o caídas
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| 592 |
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|a Medidores
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| 592 |
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|a Puentes canales
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| 592 |
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|a Costos
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| 991 |
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|a bc_mercy
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| 992 |
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|a 26/07/2006
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| 942 |
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