FIELD, B. C. F. (2011). Environmental economics: An introduction. McGraw Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFIELD, Barry C. Field. Environmental Economics: An Introduction. McGraw Hill Education, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFIELD, Barry C. Field. Environmental Economics: An Introduction. McGraw Hill Education, 2011.
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