Crawford, M. B., & Fass, R. (2015). The world beyond your head: On becoming an individual in an age of distraction (Unabridged.). Macmillan Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrawford, Matthew B., और Robert Fass. The World Beyond Your Head: On Becoming an Individual in an Age of Distraction. Unabridged. New York: Macmillan Audio, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCrawford, Matthew B., और Robert Fass. The World Beyond Your Head: On Becoming an Individual in an Age of Distraction. Unabridged. Macmillan Audio, 2015.
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