UNESCO Thesaurus : a Structured List of Descriptors for Indexing and Retrieving Literature in the Fields of Education, Science, Social Science, Culture and Communication
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| Formato: | Libro |
| Lenguaje: | English |
| Publicado: |
Paris
: UNESCO
, 1977.
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| Descripción Física: | 2t. ; 30cm. |
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| ISBN: | 92-3-101469-2 |