http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
History of International Electrotechnical Commission qualification standards
National Renewable Energy Laboratory (U.S.)
1 online resource (30 slides) : illustrations
Title from title screen (viewed on Aug. 23, 2011).
International Electrotechnical Commission.