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150818s2006 ag r 000 0 spa d |
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|a AR-TrUNPB
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| 082 |
0 |
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|a 025.52
|2 20
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| 100 |
1 |
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|a Rodríguez Briz, Fernanda
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| 245 |
1 |
0 |
|a Los servicios de referencia virtual:
|b surgimiento, desarrollo y perspectivas a futuro /
|c Fernanda Rodríguez Briz
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| 260 |
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|a Buenos Aires :
|b Alfagrama,
|c 2006
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| 300 |
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|a 156 p
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| 490 |
0 |
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|a Biblioteca Alfagrama
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| 590 |
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|a Registros migrados a formato MARC
|
| 650 |
|
7 |
|a BIBLIOTECAS
|2 Unescot
|9 1730
|
| 650 |
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7 |
|a BIBLIOTECOLOGIA
|2 Unescot
|9 1733
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| 650 |
|
7 |
|a SERVICIOS DE REFERENCIA
|2 Unescot
|9 5743
|
| 650 |
|
7 |
|a USUARIOS DE LA INFORMACION
|2 Unescot
|9 6210
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| 942 |
|
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|c BK
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| 910 |
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|a MC091022
|b MC091008
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| 999 |
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|c 11333
|d 11333
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