00527nam a2200169 a 450000500170000002000150001708200150003210000200004724500740006726000390014130000180018063000510019896400190024999700120026899900170028095200600029720251203091754.0  a0824720555  a020.3bENC  aKent, Allen Ed.  aEncyclopedia of Library and Information science,Vol.55, Supplement-18  aNew YorkbMarcel Dekker,INC.c1995  a377p.c24 cm.  aEncyclopedia - Library and Information science  bEngcdefg_  a84129 C  c52182d52182  00104070aPUbPUd1998-04-08l0o020.3 ENCp84129yBK