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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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|a 370.702.5
|b D598d
|2 22
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|a UNESCO
|e autor
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|a Directory of Unesco databses :
|b Répertoire des bases de donnés de L. /
|c UNESCO.
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| 260 |
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|a Paris,Francia :
|b United Nations Educational, Scientific and Cultural Organization,
|c 1990.
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| 300 |
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|a 66 páginas.
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|a texto
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|a UNESCO
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|a EDUCACIÓN
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|a SERVICIOS DE INFORMACIÓN
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