Bercovici, J. (2018). Play on: The new science of elite performance at any age. Houghton Mifflin Harcourt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBercovici, Jeff. Play on: The New Science of Elite Performance at Any Age. Boston: Houghton Mifflin Harcourt, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBercovici, Jeff. Play on: The New Science of Elite Performance at Any Age. Houghton Mifflin Harcourt, 2018.
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