000 00332nam a2200133Ia 4500
008 220201s1969 xx 000 0 eng d
041 _aENG
100 _aGUPTA, M L
245 0 _aELECTRONIC AND RADIO ENGINEERING
250 _a2ND
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1969
300 _a1103
942 _2ddc
999 _c45420
_d45420