Handbook of reference and information services/

Antzeko izenburuak

• Handbook of reference and information services /
  nork: Sewa Singh
  Argitaratua: (1997)
• Handbook of reference of Information services
  nork: Tseng G
  Argitaratua: (1997)
• Handbook of reference of information services: some new dimensions /
  Argitaratua: (1997)
• Reference information services /
  nork: Bopp, Richard E.
  Argitaratua: (2005)
• reference and information services :
  nork: Cassell, Kay Ann