00383nam a2200133Ia 4500008004100000020001500041082001800056100001500074245004500089260006200134300000800196650002300204650002200227140316s9999    xx            000 0 und d  a8123005229  a302.2bTEW/CO  aTewari,I P  aCommunication technology and development  aNew DelhibMinistry of information and broadcastingc1997  a116  aMass communication  atelecommunication