Cita APA

Richard P Feynman. (1992). The character of physical law. London: Penguin Books.

Chicago Style Citation

Richard P Feynman. The Character of Physical Law. London: Penguin Books, 1992.

Cita MLA

Richard P Feynman. The Character of Physical Law. London: Penguin Books, 1992.

Atenció: Aquestes cites poden no estar 100% correctes.