00299nam a2200121Ia 4500008004100000020001800041082001400059100001900073245003100092250000800123260003300131300001300164190710s9999    xx            000 0 und d  a0 07 113849 8  a539 B397C  aBeiser, Arthur 0aConcepts of modern physics  a5th  aNew DelhibMcGraw Hillc1963  axvi, 534