एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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