00377nam a2200109Ia 4500082001800000245003900018100004900057942000700106008004100113999001900154952009400173  aST 500.2 PHYS 0aPhysical sciences. Study guide 12   a KELDER, Karin H.   Cape Town, 2008  925890  cBK210816s9999    xx            000 0 und d  c111657d111656  00104070aSHATLbSHATLd2021-08-17g90.00l0p3322810003682r2021-08-17w2021-08-17yBK