Feynman, R. P. (2005). Don't you have time to think? Penguin,.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFeynman, Richard Phillips. Don't You Have Time to Think? London: Penguin,, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFeynman, Richard Phillips. Don't You Have Time to Think? Penguin,, 2005.
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