Levitt, S. D. (2014). Think like a freak: The authors of freakonomics offer to retrain your brain.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLevitt, Steven D. Think like a Freak: The Authors of Freakonomics Offer to Retrain Your Brain. 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLevitt, Steven D. Think like a Freak: The Authors of Freakonomics Offer to Retrain Your Brain. 2014.
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