http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of a symposium sponsored by Divisions S-5 and S-9 of the Soil Science Society of America in Atlanta, GA, 30 Nov. 1981 and Anaheim, CA, 29 Nov. 1982
Papers from two symposiums held at the annual meetings of the Soil Science Society of America in 1981 and 1982.