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00834nam a2200217 a 4500 |
| 008 |
050201s1979||||es a |||||||||||||spa|| |
| 942 |
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|c BK
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| 041 |
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|a spa
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| 094 |
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|a 625.734
|b O77e
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| 100 |
|
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|a Ortíz Alvarez, Miguel Edgan
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| 700 |
|
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|a Flores Valdivieso, Miguel Angel
|e coautor
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| 700 |
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|a Godoy Canizales, Raúl Edward
|e coautor
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| 245 |
|
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|a Estudio del drenaje superficial de carreteras
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| 260 |
|
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|a San Salvador :
|b Universidad de El Salvador,
|c 1979
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| 300 |
|
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|a 162 h. ;
|b il
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| 502 |
|
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|a Tesis (Ing. Civil) -- Universidad de El Salvador
|
| 650 |
|
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|a DRENAJE
|
| 650 |
|
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|a ALCANTARILLAS-DISEÑO Y CONSTRUCCION
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| 650 |
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|
|a ESTRUCTURAS HIDRAULICAS-DISEÑO
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| 999 |
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|c 66161
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| 952 |
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|0 0
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|a 10
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|d 2012-08-15
|i 10106104
|o 625.734 O77e
|p 10106104
|r 2012-08-15
|t 1
|w 2012-08-15
|y TS
|