000 00277nam a2200133Ia 4500
100 _aBartee T.C.
942 _cBK
654 _acommunication
245 _aData communications
260 _bBPB
_aNew Delhi
_c1985
082 _a5.71
_bPAN
300 _a653
546 _aENGLISH
999 _c31734
_d31734