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|a Organización de las Naciones Unidas
|9 41154
|
| 245 |
1 |
0 |
|a Empleo de las lenguas vernáculas en la enseñanza
|
| 260 |
|
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|a París,
|c 1954.
|
| 300 |
|
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|a 162 p. ;
|c 18 cm.
|
| 490 |
0 |
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|a Monografías sobre educación fundamental ;
|v 8
|
| 942 |
|
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|c BK
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| 952 |
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|y BK
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| 999 |
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|c 139546
|d 139546
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| 988 |
|
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|c 34
|d Miguel Kiperszmid
|
| 997 |
|
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|z a
|