000 00297nam a2200133Ia 4500
008 220201s1972 xx 000 0 eng d
082 _a621.3
100 _aHughes,E
245 0 _aElectrical Technology
250 _a4th
260 _bEnglish language book
_c1972
300 _a710
942 _2ddc
999 _c80091
_d80091