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| LEADER |
00746nab a2200229uu 4500 |
| 001 |
000475058 |
| 005 |
20230712143447.0 |
| 008 |
111003s2010 r ||||| spa |
| 035 |
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|a 9307301
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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 spa
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| 082 |
0 |
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|a 378
|b U
|2 00
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| 100 |
1 |
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|a Porras S., Geovanni
|e Autor/a
|4 aut
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| 245 |
1 |
0 |
|a Nuevos operadores de celular ¿para quiénes? /
|c Geovanni Porras S.
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| 300 |
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|a 17 Opinión.
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| 650 |
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|a TELEFONOS CELULARES
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| 610 |
2 |
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|a Superintendencia de Telecomunicaciones (Costa Rica)
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| 773 |
0 |
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|7 nnab
|t Universidad
|g No.1870
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| 900 |
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|a 2011
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| 912 |
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|a 04-OCT-2011 - ALVARADO MONGE, KATTIA YENORY
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| 917 |
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|a 03-OCT-2011 - ALVARADO MONGE, KATTIA YENORY
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| 949 |
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|a MA -KA
|