000 00317nam a2200145Ia 4500
100 _aBlake/Roy
250 _a2
942 _cBK
654 _aelectronic
245 _aElectronic communication system
260 _bThomsan Learning
_aNew Delhi
_c2002
082 _a621.382
_bBLA
300 _a985
546 _aENGLISH
999 _c20256
_d20256