000 00292nam a2200121Ia 4500
008 180816s2018 xx 000 0 und d
082 _a628
100 _aKaur, H
245 0 _aEnergy , Environment And Ecology
250 _a2nd
260 _bPragati Prakashan , Meerut
942 _2ddc
_cREF
_0106
999 _c5491
_d5491