000
00272nam a2200121Ia 4500
008
220201s2018 xx 000 0 eng d
041
_a
ENG
100
_a
SINGH, S
245
0
_a
ENERGY MANAGEMENT
260
_a
NEW DELHI
_b
S K KATARIA
_c
2018
300
_a
445
942
_2
ddc
999
_c
63323
_d
63323