William R. Barnes. The New Regional Economies: The US Common Market and the Global Economy. SAGE.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliam R. Barnes. The New Regional Economies: The US Common Market and the Global Economy. SAGE.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWilliam R. Barnes. The New Regional Economies: The US Common Market and the Global Economy. SAGE.
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