Hurwitz, G. A. (2014). Don't look back (First edition.). St. Martin's Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHurwitz, Gregg Andrew. Don't Look Back. First edition. New York: St. Martin's Press, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHurwitz, Gregg Andrew. Don't Look Back. First edition. St. Martin's Press, 2014.
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