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| LEADER |
00759nam a22002171a 4500 |
| 001 |
UNA01000001940 |
| 005 |
20120328184444.0 |
| 008 |
080728s1975 000 0 eng d |
| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 082 |
0 |
4 |
|a 372.6
|b P512s5
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| 100 |
1 |
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|a Petty, Walter Thomas
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| 245 |
1 |
0 |
|a Student guide to accompany :
|b Developing language skills in the elementary schools /
|c Walter T. Petty, Marion E, Cross, Elois M. Skeen
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| 250 |
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|a 5. ed.
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| 260 |
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|a Boston :
|b Allyn and Bacon ,
|c 1975
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| 300 |
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|a /210/ h. ;
|c 21x28 cm.
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| 500 |
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|a Fotocopia. Heredia : BUNA, 1985
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| 650 |
0 |
4 |
|a INGLES
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| 650 |
0 |
4 |
|a APTITUDES DE APRENDIZAJE
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| 650 |
0 |
4 |
|a ENSEÑANZA DE IDIOMAS
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| 700 |
1 |
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|a Cross, Marion E.
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| 700 |
1 |
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|a Skeen, Elois M.
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