00434nam a22001457a 4500003000400000005001700004020001500021082002400036245004200060260008600102300001000188546001200198650003600210650004200246OSt20260429121452.0  a8126620773  a020bIGNOU/MLII-102  aInformation Processing and Retrieval   aNew DelhibSchool of Social Science, Indira Gandhi National Open Universityc2006  a324p.  aEnglish  aLibrary and Information Science  aInformation Processing and Retrieval