International symposium "Sustainability in Agricultural Systems" Baltimore, M., Payne, W. A., Keeney, D. R., Rao, S. C., American Society of Agronomy, Crop Science Society of America, . . . International Federation of Agricultural Producers. (2001). Sustainability of agricultural systems in transition: Proceedings. Volume 64. Madison, Wisconsin: American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America.

International symposium "Sustainability in Agricultural Systems" Baltimore, Maryland), William A. Payne, Dennis R. Keeney, Srinivas C. Rao, American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, World Bank, and International Federation of Agricultural Producers. Sustainability of Agricultural Systems in Transition: Proceedings. Volume 64. Madison, Wisconsin: American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America, 2001.

International symposium "Sustainability in Agricultural Systems" Baltimore, Maryland), et al. Sustainability of Agricultural Systems in Transition: Proceedings. Volume 64. Madison, Wisconsin: American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America, 2001.