000 00337nam a2200145Ia 4500
008 240201s1975 xx 000 0 eng d
020 _a0380534479
082 _a531.6 ASI
100 _aASIMOV, ISAAC
245 0 _aHOW DID WE FIND OUT ABOUT ENERGY ?
260 _bAN AVON
_c1975
300 _a64
650 _aSCIENCE
942 _2ddc
_cBK
999 _c5831
_d5831