00397nam a22001337a 450000500170000000800410001702000180005804000090007608200140008510000160009924500680011526000520018330000280023520200810165825.0200810b           ||||| |||| 00| 0 eng d  a9788121932110  cNONE  a004 bNAG  aNagpal,D.P.  aGate Computer Science and Information Technology /cD.P. Nagpal  aNew Delhi :bS.Chand & Company PVT.LTD. ,c2009  a790 P. :bill. ;c25 cm