United Nations. Industrial Development Organization. (1982). Changing patterns of trade in world industry: An empirical study on revealed comparative advantage. United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization. Changing Patterns of Trade in World Industry: An Empirical Study on Revealed Comparative Advantage. United Nations, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization. Changing Patterns of Trade in World Industry: An Empirical Study on Revealed Comparative Advantage. United Nations, 1982.
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