Research and Information Institute for Agricultural Economics Hungary & Committee for Agricultural Economics, Hungarian Academy of Sciences. (2003). Studies in agricultural economics 2003: No99.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रResearch and Information Institute for Agricultural Economics Hungary और Hungarian Academy of Sciences Committee for Agricultural Economics. Studies in Agricultural Economics 2003: No99. 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रResearch and Information Institute for Agricultural Economics Hungary और Hungarian Academy of Sciences Committee for Agricultural Economics. Studies in Agricultural Economics 2003: No99. 2003.
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