Gallo, C. (2018). Five stars: The communication secrets to get from good to great (First U.S. edition.). St. Martin's Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGallo, Carmine. Five Stars: The Communication Secrets to Get from Good to Great. First U.S. edition. New York: St. Martin's Press, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGallo, Carmine. Five Stars: The Communication Secrets to Get from Good to Great. First U.S. edition. St. Martin's Press, 2018.
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