International Food Policy Research Institute. (2002). Sustainable food security for all by 2020: Proceedings of an international conference. International Food Policy Research Institute.

International Food Policy Research Institute. Sustainable Food Security for All by 2020: Proceedings of an International Conference. Washington, D.C: International Food Policy Research Institute, 2002.

International Food Policy Research Institute. Sustainable Food Security for All by 2020: Proceedings of an International Conference. International Food Policy Research Institute, 2002.