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  1. Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication (1977) 11.00
    11.00374 = weight(rvk_ss:AN 94500 in 6424) [ClassicSimilarity], result of:
      11.00374 = fieldWeight in 6424, product of:
        1.0 = tf(freq=1.0), with freq of:
          1.0 = termFreq=1.0
        11.00374 = idf(docFreq=1, maxDocs=44218)
        1.0 = fieldNorm(doc=6424)
    
    Classification
    AN 94500
    Rvk
    AN 94500