(2000). Harvard business review on business and the environment. Harvard Business School.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarvard Business Review on Business and the Environment. Harvard Business School, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHarvard Business Review on Business and the Environment. Harvard Business School, 2000.
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