http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Nuclear techniques to assess irrigation schedules for field crops
Joint FAO/IAEA Division of nuclear techniques in food and agriculture
Results of a Co -ordinated research programme organized by the Soil fertility, irrigation and crop production section, Joint FAO/IAEA Division of nuclear techniques in food and agriculture