http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of the International Symposium on Boron in Soils and Plants held at Chiang Mai, Thailand, 7-11 September 1997
International Symposium on Boron in Soils and Plants (1997 : Chiang Mai, Thailand)
Developments in plant and soil sciences ; v. 76