Collins, H. M. (2011). Gravity's ghost: Scientific discovery in the twenty-first century. University of Chicago Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCollins, H. M. Gravity's Ghost: Scientific Discovery in the Twenty-first Century. Chicago ; London: University of Chicago Press, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCollins, H. M. Gravity's Ghost: Scientific Discovery in the Twenty-first Century. University of Chicago Press, 2011.
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