000 00268nam a2200109Ia 4500
008 231212s1957 xx 000 0 und d
041 _aeng
082 _a621.381
100 _aRamamoorty M.
245 _aAn Introduction To thyristors
260 _aLondon
_bMcGrowh
_c1957
999 _c958725
_d958725