http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Verification and adoption of improved wheat production technology in farmers fields in the Sudan, Proceedings of the Third National Wheat Coornation Meeting 4-6 September 1988, Wad Medani, Sudan
International Center for Agricultural Research in the Dry Areas (ICARDA)