(2011). How Apple INC Changed the World O'Grady, Jason D. Harvard Business School.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHow Apple INC Changed the World O'Grady, Jason D. Boston: Harvard Business School, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHow Apple INC Changed the World O'Grady, Jason D. Harvard Business School, 2011.
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