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|a Baez, Albert V.
|9 21927
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1 |
0 |
|a L'innovation dans l'enseignement des sciences: Synthèse mondiale
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| 260 |
|
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|a París :
|b UNESCO,
|c 1977.
|
| 300 |
|
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|a 279 p. ;
|c 24 cm.
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| 500 |
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|a Bibliografía pp. 267-279
|
| 942 |
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|y BK
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| 999 |
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|c 21104
|d 21104
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| 988 |
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|c 34
|d Miguel Kiperszmid
|
| 997 |
|
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|z a
|