000 00262nam a2200097Ia 4500
008 230508s1999 xx 000 0 und d
041 _aeng
100 _aGEORGE KENNEDY & DAVIS
245 _aELECTRONIC COMMUNICATIONS SYSTEMS
260 _bTATA MC GRAW HILL CO
_c1999
999 _c332652
_d332652