(1979). Development of societies: The next twenty-five years, proceedings of the ISS 25th anniversary conference, The Hague, December 1977. Martinus Nijhoff Publishers bv.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDevelopment of Societies: The Next Twenty-five Years, Proceedings of the ISS 25th Anniversary Conference, The Hague, December 1977. The Hague [Netherlands]: Martinus Nijhoff Publishers bv, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDevelopment of Societies: The Next Twenty-five Years, Proceedings of the ISS 25th Anniversary Conference, The Hague, December 1977. Martinus Nijhoff Publishers bv, 1979.
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