00431nam a22001577a 450000500170000001000130001702000140003003500130004403700140005708200130007110000160008424500510010026000500015127000500020130000220025120181129143242.0  aB-216366  a813131281  aB-216366  bBPPD/PUB.  a658.4038  aSingh, S.R.  aInformation system management /cby S.R. Singh  aNew DelhibA P H Publishing Corporationc2007  a5 Ansari Road Darya Ganj bNew Delhi e110002  a280p. c21cm(pbk)