Kragh, H. (1990). Dirac: A scientific biography. Cambridge University Press.
Chicago-čujuhus (17. p.)Kragh, Helge. Dirac: A Scientific Biography. Cambridge [England] ; New York: Cambridge University Press, 1990.
MLA-čujuhus (9. p.)Kragh, Helge. Dirac: A Scientific Biography. Cambridge University Press, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
