000 00301nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
041 _aENG
100 _aI.S:5048-1969
245 0 _aDIGITAL ELECTRONICS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1992
300 _a303
942 _2ddc
999 _c57241
_d57241