000 00253nam a2200109Ia 4500
008 220201s1960 xx 000 0 eng d
100 _aKercher, RM & Corcoran, GR
245 0 _aA.C circuit
260 _bWiley Topph
_c1960
300 _a602
942 _2ddc
999 _c72543
_d72543