http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Chemical market input/output analysis of selected chemical substances to assess sources of environmental contamination
Prepared by Syracuse Research Corp., Center for Chemical Hazard Assessment, Syracuse N.Y., under contract number 68-01-3224, task III, SCR number L1273-08.