00318nam a2200121Ia 4500008004100000020001500041082001900056100001500075245003600090260004200126300000800168650002000176140316s9999    xx            000 0 und d  a8170001978  a021.65bSEH/IN  aSehgal,R L  aIntroduction to library network  aNew DelhibEss Ess Publicationsc2004  a244  aLIBRARY SCIENCE