00301nam a2200121Ia 450000500170000000800410001708200150005810000190007324500310009225000080012326000380013130000100016920260205060322.0260111s9999||||xx |||||||||||||| ||und||  a539  B397C  aBeiser, Arthur 0aConcepts of modern physics  a6th  aNew DelhibTata McGraw Hillc2003  a542p.