00345nam a2200097Ia 4500008004100000020000600041100002400047245005000071999001900121952010700140211105s9999    xx            000 0 und d  a"  a KELDER, Karin H.   0aPhysical sciences. Grade 10 : learner's book   c606806d606805  00104070aERMELLbERMELLd2021-11-08g124.00l0oST 530 KELDp33228019748894r2021-11-08w2021-11-08