(1988). Green manure in rice farming: Proceedings of a symposium on sustainable agriculture. The role of green manure crops in rice farming systems 25-29 May 1987. [Philippines]: International Rice Research Institute, in collaboration with the Commission on the Application of Science to Agriculture, Forestry, and Aquaculture.

Green Manure in Rice Farming: Proceedings of a Symposium On Sustainable Agriculture. The Role of Green Manure Crops in Rice Farming Systems 25-29 May 1987. [Philippines]: International Rice Research Institute, in collaboration with the Commission on the Application of Science to Agriculture, Forestry, and Aquaculture, 1988.

Green Manure in Rice Farming: Proceedings of a Symposium On Sustainable Agriculture. The Role of Green Manure Crops in Rice Farming Systems 25-29 May 1987. [Philippines]: International Rice Research Institute, in collaboration with the Commission on the Application of Science to Agriculture, Forestry, and Aquaculture, 1988.