APA (7 वां संस्करण) प्रशस्ति पत्र
(2011). Bloomberg Businessweek: August - September 2011. Bloomberg Businessweek.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Bloomberg Businessweek: August - September 2011. New York: Bloomberg Businessweek, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Bloomberg Businessweek: August - September 2011. Bloomberg Businessweek, 2011.
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