000 00272nam a2200121Ia 4500
008 220201s2018 xx 000 0 eng d
041 _aENG
100 _aSINGH, S
245 0 _aENERGY MANAGEMENT
260 _aNEW DELHI
_bS K KATARIA
_c2018
300 _a445
942 _2ddc
999 _c63323
_d63323