000 00288nam a2200121Ia 4500
008 220201s1950 xx 000 0 eng d
100 _aGibbs, JB
245 0 _aTransformer, principes practice
250 _a2
260 _bLondon: Mc Graw Hill Book
_c1950
300 _a236
942 _2ddc
999 _c70712
_d70712