000 00275nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a333.7
_bENE
100 _aKaushika, N. D.
245 _aEnergy resources and technology
260 _bDivyajyoto Prakashan
_aJodhpur
_c1989
999 _c135807
_d135807