Arne Ryde Symposium (12th : 1991 : Helsingnr, Denmark), Hansson, G., & Sodersten, B. (1993). Trade, growth, and development: The role of politics and institutions : proceedings of the 12th Arne Ryde Symposium, 13-14 June 1991, in honour of Bo Sodersten. Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रArne Ryde Symposium (12th : 1991 : Helsingnr, Denmark), Gote Hansson, और Bo Sodersten. Trade, Growth, and Development: The Role of Politics and Institutions : Proceedings of the 12th Arne Ryde Symposium, 13-14 June 1991, in Honour of Bo Sodersten. London: Routledge, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रArne Ryde Symposium (12th : 1991 : Helsingnr, Denmark), et al. Trade, Growth, and Development: The Role of Politics and Institutions : Proceedings of the 12th Arne Ryde Symposium, 13-14 June 1991, in Honour of Bo Sodersten. Routledge, 1993.