000 00281nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a659.3
_bNAR;1
100 _aNarayana Menon
245 0 _aCommunication revolution
260 _aNew Delhi
_bNational Book Trust
_c1976
942 _cBK
999 _c24293
_d24293