000 00353nam a2200145Ia 4500
008 180626s9999 xx 000 0 und d
020 _a9.78981E+12
082 _a500 S26 2009
245 0 _aScience 5 & 6 : Systems and energy book 2
260 _aSingapore
260 _bJust Education Pub.
260 _cc2009
300 _a142 p
650 _aScience
999 _c47555
_d47555