On retrieval system theory /

Eitemau Tebyg

• Techniques of information retrieval /
  gan: Vickery, B. C.
  Cyhoeddwyd: (1970)
• Information retrieval systems : Characteristics,testing and evaluation /
  gan: Lancaster, F. Wilfrid
  Cyhoeddwyd: (1968)
• Information storage and retrieval : Theory,systems anddevices /
  gan: Taube Mortimer
  Cyhoeddwyd: (1958)
• Information retrieval : Notes for students /
  gan: Sharp, John R.
  Cyhoeddwyd: (1970)
• Information retrieval : Notes for students /
  gan: Sharp, John R.
  Cyhoeddwyd: (1970)