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070820s1967 es j f m s000 0 spa d |
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|a Sistema Bibliotecario Universidad de El Salvador
|c SV-SsUSB
|d SV-SsUSB
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| 041 |
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|a spa.
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| 094 |
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|a Ing. Civil
|b E-1
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| 100 |
1 |
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|a Estrada Avelar, Pedro Miguel
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| 245 |
1 |
1 |
|a Importancia de las lagunas de estabilización en el tratamiento de las aguas negras /
|c Pedro Miguel Estrada Avelar, David Enoc Escobar Cordova, Héctor Alfredo Quiroa Quijano
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| 260 |
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|a San Salvador :
|b U.E.S.,
|c 1967
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| 300 |
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|a 129 h. ;
|b cuadros, diagramas ;
|c 280cm.
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| 502 |
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|a Tesis (Ingeniería Civil)--Universidad de El Salvador, San Salvador, 1967.
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| 502 |
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|a Tesis (Ingeniero Civil) -- Universidad de El Salvador
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| 502 |
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|a Tesis (INGENIERÌA CIVIL) -- Universidad de El Salvador.
|
| 504 |
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|a Incluye bibliografía.
|
| 592 |
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|a Conceptos fundamentales -- Estado actual de las aguas superficiales en El Salvador -- Autopurificación natural -- Lagunas de estabilización --
|
| 650 |
|
7 |
|a Tratamiento de las aguas negras.
|2 lemb
|
| 700 |
1 |
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|a Escobar Cordova, David Enoc
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| 700 |
1 |
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|a Quiroa Quijano, Héctor Alfredo
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| 700 |
1 |
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|a Escobar Cordova, David Enoc.,
|e autor..
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|e | AECI/Biblioteca Central
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