000
00257nam a2200121Ia 4500
020
_a
9788121922388
100
_a
Gupta B R
245
_a
Powersystem analysis and design
250
_a
6
260
_c
2012
_b
S.CHAND
_a
New Delhi
300
_a
664
942
_c
BK
999
_c
54797
_d
54797