000 00280nam a2200109Ia 4500
008 160710s1942 xx 000 0 und d
100 _aPERKINS W.T
245 2 _aA PRACTICAL COURSE IN MAGNETISM AND ELECTRICITY AND RADIO
260 _bNEWNES
_c1942
300 _a312
942 _2ddc
_cB
999 _c5271
_d5271