Cita APA

Feynman, R. P. (1992). The character of physical law. London: Penguin.

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.