000 00268nam a2200121Ia 4500
100 _aKENNEDY, GEORGE
110 _aDAVIS, BERNARD
245 _aELECTRONIC COMMUNICATION SYSTEMS
250 _a3
260 _bTATA MCGRAW HILL
_c1991
300 _a741
942 _2ddc
_cBB
999 _c73641
_d73641