000 00264nam a2200109Ia 4500
008 220201s1962 xx 000 0 eng d
100 _aQuartly, CJ
245 0 _aSquare, loop ferrite circuits
260 _bLondon: Iliffe Book
_c1962
300 _a166
942 _2ddc
999 _c71550
_d71550