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  • × language_ss:"e"
  • × theme_ss:"Bibliographie"
  • × theme_ss:"Informationsmittel"
  1. Walford's guide to reference material : Vol.1: Science and technology (1999) 0.02 
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    Isbn
    1-85604-341-X
  2. Reference and information services : an introduction (2001) 0.02 
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    Isbn
    1-56308-130-X
  3. Reference and information services : an introduction (1995) 0.01 
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    Isbn
    1-56308-130-X

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