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  • × author_ss:"Keen, E.M."
  • × year_i:[1980 TO 1990}
  1. Armstrong, C.J.; Keen, E.M.: Workbook for NEPHIS and KWAC : Microcomputer printed subject indexes teaching package, Pt.1 (1982) 0.01 
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    Imprint
    London : British Library
    Series
    British Library research and development report; 5710
  2. Armstrong, C.J.; Keen, E.M.: Manual for teaching NEPHIS and KWAC : Microcomputer printed subject indexes teaching package, Pt.2 (1982) 0.01 
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    Imprint
    London : British Library
    Series
    British Library research and development report: 5711