APA stil citiranja

Penrose, R. (2004). The road to reality: The road to reality : a complete guide to the laws of the universe. London: Jonathan Cape.

Chicago stil citiranja

Penrose, Roger. The road to reality: The road to reality : a complete guide to the laws of the universe. London: Jonathan Cape, 2004.

MLA stil citiranja

Penrose, Roger. The road to reality: The road to reality : a complete guide to the laws of the universe. London: Jonathan Cape, 2004.