00511nam a2200169 a 450000500170000002000180001708200160003510000170005124500620006826000420013030000250017269000260019796400160022399700130023999900190025295200700027120251203111151.0  a9788170005537  a025.04bCHU  aChu, Heiting  aInformation Repressentaion & Retrieval in the Digital Age  aNew DelhibEss Ess publicationsc2009  axiv,248p.c22cm.cHB  aInformation retrieval  bcdefg_  a138474 C  c116294d116294  00104070aPUbPUd2009-03-11g640.00l0o025.04 CHUp138474yBK