International Food Policy Research Institute. (2002). Sustainable food security for all by 2020: Proceedings of an international conference, September 4-6, 2001, Bonn, Germany. International Food Policy Research Institute.
Dyfyniad Arddull ChicagoInternational Food Policy Research Institute. Sustainable Food Security for All by 2020: Proceedings of an International Conference, September 4-6, 2001, Bonn, Germany. Washington, D.C: International Food Policy Research Institute, 2002.
Dyfyniad MLAInternational Food Policy Research Institute. Sustainable Food Security for All by 2020: Proceedings of an International Conference, September 4-6, 2001, Bonn, Germany. International Food Policy Research Institute, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.