Proceedings of the academic symposium on cities and civilization Proceedings of the International Symposium on Exotic Pests and their Control Proceedings of the internatimal symposium on fertilizer and agricultural development Proceedings of the 9th international symposium on coal combustion Proceedings of the 3rd International Symposium on Heat Transfer and Energy Conservation Proceedings of the symposium on "education reform in Macau" Proceedings of the international symposium on mechanics in the next 15 years Proceedings of international symposium on ship-bridge collision and its protection Proceedings of the first Chinese symposium on microgravity science and space experiments Origins of the state and civilization