Ministry of Economic Affairs. (1974). Economic titles, abstracts. Martinus Nijhoff.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMinistry of Economic Affairs. Economic Titles, Abstracts. Dordrecht, Holanda: Martinus Nijhoff, 1974.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMinistry of Economic Affairs. Economic Titles, Abstracts. Martinus Nijhoff, 1974.
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