Heath, C., Heath, D., & Kahlenberg, C. (2010). Switch: How to change things when change is hard. Random House Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHeath, Chip, Dan Heath, और Charles Kahlenberg. Switch: How to Change Things When Change Is Hard. New York: Random House Audio, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHeath, Chip, et al. Switch: How to Change Things When Change Is Hard. Random House Audio, 2010.
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