00530nam a2200193Ia 4500020001500000082001600015245003800031260005100069690000600120700000500126500000500131100001900136300003200155490000500187952010000192964001700292921001000309999001700319  a8176481637  a020bK98.TB  aTextbook of information scienceb  aNew DelhibA.P.H. Publishing Corporationc2000  a   a  a  aKawatra, P. S.  aviii, 323p. Index, Annexure  a  001040708GRaISIbISId2000-02-02l0o020 K98.TBpG2172r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a18660  c18660d18660