000 00345nam a2200145Ia 4500
008 210219s9999||||xx |||||||||||||| ||und||
082 _a621.38152
_bB485T
100 _aBerdo, M.S
245 0 _aThyristor Engineering
_c M.SBerdo
250 _a8th
260 _aDelhi
_bKhanna
_c1978
300 _avi;712
942 _cBK
950 _o621.38152 B485T
999 _c3452
_d3452