00291nam a2200121Ia 4500008004100000041001200041082001600053100001000069245004100079260002500120300000800145650001600153221030s9999    xx            000 0 und d  aEnglish  a105.23bChi  aGupta 0aData communicationcby J. S. Chitode  bTechnical Pub.c2002  a455  aBE Computer