000
00251nam a2200109Ia 4500
008
200701s1997 xx 000 0 eng d
100
_a
DUBEY.G.K
245
0
_a
THYRISTORISED POWER CONTROLLER
260
_b
S CHAND
_c
1997
300
_a
825
942
_2
ddc
_c
GE
999
_c
505
_d
505