00299nam a22001217a 4500003000400000005001700004008004100021020001800062040000800080100001700088245003700105260003500142OSt20221024151157.0221024b        xxu||||| |||| 00| 0 eng d  a9781607965602  cN/A  aP.A.M. Dirac  aPrinciples of Quantum Mechanics.  aUSAbSnowball publishingc1957