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  1. Thomas, D.: Book indexing principles and standards (1989) 10.31
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    Author
    Thomas, D.
  2. Thomas, D.; Hinckley, A.T.; Eisenbach, E.R.: ¬The effective reference librarian (???) 10.31
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    Author
    Thomas, D.
  3. Thomas, D.: Indexing after the millennium : 4: the next few years (1998) 10.31
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