Search (3 results, page 1 of 1)

  • × language_ss:"e"
  • × theme_ss:"Informationsdienstleistungen"
  • × year_i:[1960 TO 1970}
  1. Galvin, T.J.: Problems in reference service (1965) 0.00 
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  2. Grogan, D.: Case studies in reference work (1967) 0.00 
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  3. Ranganathan, S.R.: Reference service (1961) 0.00 
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