000 00354nam a2200133Ia 4500
008 100328s9999 xx 000 0 und d
082 _b55460
100 _aCambridge Science Universe
245 _aEnergy,Forces & Resources
260 _bCambridge press
630 _aEnergy,Forces & Resources
730 _aEnergy,Forces & Resources
942 _cBOOK
999 _c542152
_d542149