Feynman, R. P., & Robbins, J. (1999). The pleasure of finding things out: The best short works of Richard P. Feynman. Perseus Books, ; Penguin.

Feynman, Richard Phillips, and Jeffrey Robbins. The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman. Cambridge, Mass. : London: Perseus Books, ; Penguin, 1999.

Feynman, Richard Phillips, and Jeffrey Robbins. The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman. Perseus Books, ; Penguin, 1999.