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| LEADER |
00809nam a2200193 a 4500 |
| 008 |
050201s1985||||es |||||||||||||||||spa|| |
| 942 |
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|c BK
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| 041 |
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|a spa
|
| 094 |
|
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|a 620.136
|b CH512e
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| 100 |
|
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|a Chávez Alfaro, Sergio Edwin
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| 700 |
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|a Quintanilla Román, Pedro Ezequiel
|e coautor
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| 700 |
|
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|a Zaldaña Flores, Carlos Alberto
|e coautor
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| 245 |
|
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|a Elaboración del concreto usando desperdicios como agregado grueso
|
| 260 |
|
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|a San Salvador :
|b Universidad Centroamericana "José Simeón Cañas",
|c 1985
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| 300 |
|
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|a 135 h.
|
| 502 |
|
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|a Tesis (Ing. Civil) -- Universidad Centroamericana "José Simeón Cañas".
|
| 650 |
|
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|a CONCRETO
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| 999 |
|
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|c 72560
|d 72560
|
| 952 |
|
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|0 0
|1 0
|4 0
|6 620_136000000000000_CH512E
|7 0
|8 T
|9 131141
|a 10
|b 10
|c T
|d 2012-08-15
|i 10105505
|o 620.136 CH512e
|p 10105505
|r 2012-08-15
|t 1
|w 2012-08-15
|y TS
|