000
00282nam a2200121Ia 4500
008
220201s1979 xx 000 0 eng d
100
_a
JHA R S
245
0
_a
SWITCHGEAR AND PROTECTION
250
_a
2
260
_a
DELHI
_b
DHANPAT RAI AND SONS
_c
1979
300
_a
274
942
_2
ddc
999
_c
90439
_d
90439