http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Water management in Philippine irrigation systems
research & operations. Papers presented at the Water Management Workshop, December 11-14, 1972, sponsored by the Dept. of Agricultural Engineering and the Dept. of Agricultural Economics, University of the Philippines, College of Agriculture and by the Dept. of Agricultural Economics, International Rice Research Institute