Balassa, B. (1988). Changing Trade Patterns in Manufactured Goods. ELSEVIER.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBalassa, B. Changing Trade Patterns in Manufactured Goods. ELSEVIER, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBalassa, B. Changing Trade Patterns in Manufactured Goods. ELSEVIER, 1988.
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