00286nam a2200109Ia 4500008004100000082001700041100001500058245005300073260003000126300001000156650001000166060110s9999    xx            000 0 und d  a21.65bSEH/A  aSEHGAL, RL 3aAn Introduction to Library NetworkcBy RL Sehgal  bEss Ess Publicationc1996  a244p.  a21.65