Reference and information services: An introduction /

Eitemau Tebyg

• Reference and information services An introduction /
  gan: Bopp, Richard E.
  Cyhoeddwyd: (2001)
• Reference and information services introduction
  gan: Bopp, Richard E; ed
  Cyhoeddwyd: (2011)
• reference and information services : an introduction /
  gan: Cassell, Kay Ann
• Reference and information services : an introduction /
  gan: Piyush Ranjan
  Cyhoeddwyd: (2014)
• Reference and information services An introduction /
  gan: Bopp, Richard E.
  Cyhoeddwyd: (2005)