Pickering, A. The tortoise against modernity - grey walter, the brain, engineering and entertainment: Andrew Pickering. Conference Experimental Cultures: Configurations between Science, Art, and Technology, 1830 - 1950 : Berlin, 7 - 9 December 2001.(2002).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPickering, Andrew. "The Tortoise Against Modernity - Grey Walter, the Brain, Engineering and Entertainment: Andrew Pickering." Conference Experimental Cultures: Configurations Between Science, Art, and Technology, 1830 - 1950 : Berlin, 7 - 9 December 2001.(2002) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रPickering, Andrew. "The Tortoise Against Modernity - Grey Walter, the Brain, Engineering and Entertainment: Andrew Pickering." Conference Experimental Cultures: Configurations Between Science, Art, and Technology, 1830 - 1950 : Berlin, 7 - 9 December 2001.(2002), .