000 00260nam a2200109Ia 4500
008 230210s9999 xx 000 0 und d
100 _aGUPTA D.P.SEN
_914716
245 0 _aWHAT ON EARTH IS ENERGY
260 _bN.C.E.R.T.
_c2006
300 _a94
942 _cBK
999 _c118665
_d118665