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| LEADER |
01308cam a2200217a 44500 |
| 040 |
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|a Sistema Bibliotecario Universidad de El Salvador
|b spa
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| 094 |
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|a 1969
|b R6R
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| 100 |
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|a Rodriguez Rivas, Ernesto
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| 245 |
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|a Concreto Lijero /
|c Ernesto Rodriguez Rivas.
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| 260 |
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|a San Salvador :
|b Universidad de El Salvador,
|c 1969.
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| 300 |
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|a 80 h. ;
|c 29 cm.
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| 502 |
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|a Tesis (Ingeniería Civil 9 -- Universidad de El Salvador, San Salvador.
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| 592 |
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|a Concreto -- Clases de concreto liviano -- Concreto sin finos --Concreto de agregado ligero -- Proporcionamiento.
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| 991 |
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|a ing_yanet
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| 992 |
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|a 19/04/2010
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| 942 |
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|c BK
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| 999 |
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|c 45810
|d 45810
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