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981201s1981 enk ||||| eng |
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|a 0521281695
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| 035 |
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|a 3653173
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| 040 |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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| 041 |
0 |
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|a eng
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| 082 |
0 |
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|a 428.24
|b U72D
|2 00
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| 100 |
1 |
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|a Ur, Penny
|e Autor/a
|4 aut
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| 245 |
1 |
0 |
|a Discussions that work :
|b task-centred fluency practice
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| 260 |
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|a Cambridge :
|b Cambridge University Press,
|c 1981.
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| 300 |
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|a vi, 122 páginas :
|b ilustraciones
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| 500 |
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|a Reimpresiones: 1997
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| 650 |
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|a INGLES
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| 650 |
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|a INGLES
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| 916 |
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|a Centro Catalográfico
|