Gunster, B., & Atkinson, K. (2023). Flip thinking: The life-changing art of turning problems into opportunities (First US edition.). Ballantine Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGunster, Berthold, और Kelly Atkinson. Flip Thinking: The Life-changing Art of Turning Problems into Opportunities. First US edition. New York: Ballantine Books, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGunster, Berthold, और Kelly Atkinson. Flip Thinking: The Life-changing Art of Turning Problems into Opportunities. First US edition. Ballantine Books, 2023.
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