00323nam a2200133Ia 4500008004100000041000800041082001900049100001900068245002500087260003400112300000800146365001600154700001900170230718s9999    xx            000 0 und d  aeng  a621.319'2bCHO  aChoudhury D.R.  aNetworks And Systems  c2003bNew Age Int Publication  a926  cRs.b260.00  aChoudhury D.R.