http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ground water : the problem and some solutions
proceedings of the Gulf Coast Hazardous Substance Research Center 4th annual symposium, April 2-3, 1992
Gulf Coast Hazardous Substance Research Center Symposium 1992 : Lamar University)