Não informado. (1971). Abstracts of hungarian economic literature. Hungarian Scientific Council for World Economy.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Abstracts of Hungarian Economic Literature. Budapest: Hungarian Scientific Council for World Economy, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Abstracts of Hungarian Economic Literature. Hungarian Scientific Council for World Economy, 1971.
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