000 00259nam a2200109Ia 4500
020 _a0074603418
100 _aSubrahmanyam V
245 _aThyristor Control of Electric Drives
260 _c1991
_bTATA MC GRAW HILL
_aNew Delhi
300 _axi+416
942 _cBK
999 _c20727
_d20727