000 00307pam a2200121a 44500
008 160422s9999 xx 000 0 und d
082 _a011.62 GUP
100 _aGupta, D. P. Sen
245 _aWhat on earth is energy?
260 _aNew Delhi
_b NCERT
_c1989
300 _a92p
650 _aChildren Collection
999 _c84965
_d84965