Schafer, J., & Karlins, M. (2020). The truth detector: An ex-FBI agent's guide for getting people to reveal the truth. Atria Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchafer, Jack, और Marvin Karlins. The Truth Detector: An Ex-FBI Agent's Guide for Getting People to Reveal the Truth. New York: Atria Books, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchafer, Jack, और Marvin Karlins. The Truth Detector: An Ex-FBI Agent's Guide for Getting People to Reveal the Truth. Atria Books, 2020.
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