Search (1 results, page 1 of 1)

  • × year_i:[1970 TO 1980}
  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) 10.09
    10.087449 = weight(ddc_ss:025.4/9 / dc19 in 6424) [ClassicSimilarity], result of:
      10.087449 = fieldWeight in 6424, product of:
        1.0 = tf(freq=1.0), with freq of:
          1.0 = termFreq=1.0
        10.087449 = idf(docFreq=4, maxDocs=44218)
        1.0 = fieldNorm(doc=6424)
    
    Classification
    025.4/9 / dc19
    Ddc
    025.4/9 / dc19