http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Citizens' guide to toxic substances information
Office of Pesticides and Toxic Substances.
prepared by Public Participation Staff, Office of Pesticides and Toxic Substances, U.S. Environmental Protection Agency.
In scope of the U.S. Government Publishing Office Cataloging and Indexing Program (C&I) and Federal Depository Library Program (FDLP).
GPO Cataloging Record Distribution Program (CRDP).