000 00300nam a2200121Ia 4500
008 210901s1972 xx 000 0 eng d
082 _a537.534 OPE
100 _aOpen University
245 0 _aFlux and magnetic circuite
260 _bOpen University Press
_c1972
300 _a60p.
942 _2ddc
_cBK
999 _c10428
_d10428