000 00331nam a2200133Ia 4500
008 220201s1976 xx 000 0 eng d
041 _aENG
100 _aGUPTA, M L
245 0 _aELECTRONIC AND RADIO ENGINEERING
250 _aIV
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1976
300 _a1244
942 _2ddc
999 _c46281
_d46281