APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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