Michael, V. (2000). Business Policy and Environment (2nd.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMichael, V. Business Policy and Environment. 2nd. New Delhi, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMichael, V. Business Policy and Environment. 2nd. 2000.
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