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  • × classification_ss:"Z695.U37 1977"
  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) 10.07
    10.072365 = weight(ddc_ss:025.4/9 / dc19 in 422) [ClassicSimilarity], result of:
      10.072365 = fieldWeight in 422, product of:
        1.0 = tf(freq=1.0), with freq of:
          1.0 = termFreq=1.0
        10.072365 = idf(docFreq=4, maxDocs=43556)
        1.0 = fieldNorm(doc=422)
    
    Classification
    025.4/9 / dc19
    Ddc
    025.4/9 / dc19