Richard P Feynman. (1992). The character of physical law. London: Penguin Books.
Chicago Style aipamenaRichard P Feynman. The Character of Physical Law. London: Penguin Books, 1992.
MLA aipamenaRichard P Feynman. The Character of Physical Law. London: Penguin Books, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.