00363nam a2200097Ia 4500008004100000020000600041100002700047245006600074999001900140952010600159211105s9999    xx            000 0 und d  a"  a Kelder, Karin 990637 0aStudy & master : physical sciences, grade 12, learner's book   c606808d606807  00104070aERMELLbERMELLd2021-11-08g170.00l0oST 530 KELDp3300310009601r2021-11-08w2021-11-08