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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
|
245 |
0 |
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|a Dificultades y obstáculos para el aula (II).
|
250 |
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|a 1a. ed.
|
260 |
|
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|a Madrid.
|b DIADA.
|c 2003
|
300 |
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|a 114 p.
|c 24 Cmts.
|
490 |
0 |
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|a Investigación en la escuela
|v N°. 49
|x ISSN 0213-7771
|
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
|
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 146719
|d 146719
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|6 370_780000000000000_D569D
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|8 CG
|9 263694
|a 30
|b 30
|c GN
|d 1969-12-31
|e | Lib.UES
|h
|i 30018252
|o 370.78 D569d
|p 30018252
|r 2013-02-14
|t 1
|w 2006-06-20
|y BK
|