Παραπομπή APA

Kragh, H. (1990). Dirac: A scientific biography. Cambridge University Press.

Παραπομπή Chicago Style

Kragh, Helge. Dirac: A Scientific Biography. Cambridge [England]: Cambridge University Press, 1990.

Παραπομπή MLA

Kragh, Helge. Dirac: A Scientific Biography. Cambridge University Press, 1990.