00429nam a22001457a 4500008004100000020002100041040005500062080002700117100001700144245003400161260005100195300001300246650001400259653001000273230609b        |||||||| |||| 00| 0 eng d  a0-521-38089-89-8  aNational Science LibrarycNational Science Library  aR 929:53-052Dirac bN0  aKragh, Helge  aDirac: A scientific biography  aNew York: bCambridge University Press, c1990  ax, 389p.  aBiography  aDirac