000 00267nam a2200109Ia 4500
008 231212s1977 xx 000 0 und d
041 _aeng
082 _a621.381
100 _aRamamoorty M.
245 _aAn Introduction To thyristors
260 _aDelhi
_bMcGrowh
_c1977
999 _c958726
_d958726