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|a Sistema Bibliotecario Universidad de El Salvador
|b spa
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| 041 |
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|a spa
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| 082 |
0 |
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|a 370.78
|b D569d
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| 245 |
0 |
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|a Dificultades y obstáculos para el cambio en el aula. ( I )
|
| 250 |
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|a 1a. ed.
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| 260 |
|
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|a Madrid.
|b DIADA.
|c 2002.
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| 300 |
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|a 112 p.
|c 24 Cmts.
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| 490 |
0 |
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|a Investigación en la escuela
|v N°. 47
|x ISSN 0213-7771
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| 650 |
|
7 |
|a EDUCACION.
|2 lemb
|
| 700 |
1 |
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|a Canal de León, Pedro..
|e director.
|
| 700 |
1 |
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|a García Díaz, J. Eduardo.
|e diriector
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| 700 |
1 |
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|a García Pérez, Francisco F.
|e director.
|
| 942 |
|
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|c BK
|8 ddc
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|c 146767
|d 146767
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|9 263766
|a 30
|b 30
|c GN
|d 1969-12-31
|e | Lib.UES
|h
|i 30018251
|o 370.78 D569d
|p 30018251
|r 2013-02-14
|t 1
|w 2006-06-29
|y BK
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