00381nam a2200145Ia 4500100002600000490000600026942000700032654001200039245002400051260002800075082001300103546001200116999001700128952009000145  aFeynman/R.P/ Sands/M   v3  cBK  aphysics  aLectures on Physics  bNarosaaNew Delhic1986  a530bFEY  aENGLISH  c31227d31227  001040708CRCaCRCEbCRCEd2023-03-17l0o530 FEYp1478r2023-03-17w2023-03-17yBK