http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Sittig's handbook of toxic and hazardous chemicals and carcinogens
Provides the most comprehensive listing of the hazardous chemicals commonly used, transported, and regulated in industry and the workplace. The chemicals are presented alphabetically and classified as a carcinogen, hazardous substance, hazardous waste, or toxic pollutant.
Volume 1. A-D -- volume 2. E-O -- volume 3. P-Z.
Includes bibliographical references and indexes.