http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
an encyclopedia of chemicals, drugs, and biologicals
Maryadele J. O'Neil, editor ... [et al.].
Includes 1 CD-ROM titled "The Merck index : an encyclopedia of chemicals, drugs, and biologicals by Maryadele J. O'Neil"