http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a consumer's guide from the National Bureau of Standards
Center for Mechanical Engineering and Process Technology (U.S.)
Center for Consumer Product Technology (U.S.)
[by Edith Corliss, Center for Mechanical Engineering and Process Technology, National Engineering Laboratory, National Bureau of Standards ; editor, Suellen Halpin, Center for Consumer Product Technology ; produced in cooperation with Food and Drug Administration].