http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Guidelines: land evaluation for irrigated agriculture
Food and Agriculture Organization of the United Nations
Soil Resources, Management, and Conservation Service.
xii, 231 pages : illustrations, maps (some color) ; 30 cm.
Soils Resources, Management and Conservation Services, FAO Land and Water Development Division.