Johnson, S., & Roberts, T. (2018). Who moved my cheese?: An a-mazing way to deal with change in your work and in your life (Unabridged.). Penguin Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnson, Spencer, और Tony Roberts. Who Moved My Cheese?: An A-mazing Way to Deal with Change in Your Work and in Your Life. Unabridged. New York: Penguin Audio, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रJohnson, Spencer, और Tony Roberts. Who Moved My Cheese?: An A-mazing Way to Deal with Change in Your Work and in Your Life. Unabridged. Penguin Audio, 2018.
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