000 00282nam a2200121Ia 4500
008 200208s9999 xx 000 0 und d
082 _aENM
245 0 _aEnergy Management
245 0 _nv.20(1-4)
260 _aNew Delhi
260 _bNational Productivity Council
942 _cBV
999 _c137298
_d137298