000 00305nam a2200121Ia 4500
008 160710s1977 xx 000 0 und d
082 _a621.38 KEN
100 _aKENNEDY,GEORGE
245 _aELECTRONIC COMMUNICATION SYSTEMS
260 _bMCGRAW HILL BOOK COMPANY
_c1977
300 _a774
942 _2ddc
_cB
999 _c43853
_d43853