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| 041 |
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|a spa
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| 094 |
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|a 625.734
|b L864e
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| 100 |
|
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|a López Trujillo, Rodolfo Antonio
|
| 700 |
|
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|a Velasco Morán, José
|e Asesor
|
| 245 |
|
|
|a Estudio y diseño para el drenaje en tierras agrícolas
|
| 260 |
|
|
|a San Salvador :
|b Universidad de El Salvador,
|c 1968
|
| 300 |
|
|
|a 80 h.
|
| 502 |
|
|
|a Tesis (Ingeniero Civil) -- Universidad de El Salvador
|
| 592 |
|
|
|a Estudios preliminares de drenaje agrícola
|
| 592 |
|
|
|a Estudios preliminares de los suelos
|
| 592 |
|
|
|a Estudios preliminares de hidrología
|
| 592 |
|
|
|a Métodos de drenaje
|
| 592 |
|
|
|a Bombeo
|
| 592 |
|
|
|a Gravedad
|
| 592 |
|
|
|a Diseño del sistema de avenamiento
|
| 592 |
|
|
|a Análisis económico del sistema de drenaje
|
| 991 |
|
|
|a bc_mercy
|
| 992 |
|
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|a 26/07/2006
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| 942 |
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