00453nam a2200169Ia 4500020001800000082001900018100001900037245004800056260003100104300001600135504001900151650002600170650002400196650002000220650002300240700002000263  a0-408-10684-0  aRR 020.1 VIC-;  aVickery, Brian 0aInformation science: in theory and practice  aLondonbButterworthsc1987  axiii, 384p.  aIncludes index  aInformation retrieval  aInformation science  aLibrary science  aInformation theory  aVickery, Alina