00305nam a2200109Ia 4500008004100000082001900041100002000060245004300080250000800123260004300131300002100174260305b        |||||||| |||| 00| 0 eng d  a530.1bD597.PQ  aDirac, P. A. M.  aThe principles of quantum mechanicsb/  a4th  aDelhi:bOxford University Press,c1958  axii, 314p. Index