000 00281nam a2200109Ia 4500
008 220201s1999 xx 000 0 eng d
100 _aSCHOENBECK, R.S.
245 0 _aELECTRONIC COMMUNICATION MODULATION & TRANSMISSION
260 _aDELHI
_bPHI
_c1999
300 _a645
942 _2ddc
999 _c68050
_d68050