00457nam a2200157Ia 4500008004100000020001800041082001400059100001500073245002700088250000900115260004200124300000800166942000700174952010100181999001700282190710s9999    xx            000 0 und d  a81-219-0909-0  a530 Ar67B  aArora, C L 0aB Sc practical physics  a19th  aNew DelhibS. Chand and Companyc2010  a609  cBK  00104070aRIEBPLbRIEBPLd2019-07-10l2o530 Ar67Bp60409r2023-02-10 00:00:00s2023-02-06yBK  c27860d27860