http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (approximately 2 pages)
Quarterly report presenting data on crude gypsum mined, imported, and sold; calcined gypsum produced from domestic and imported rock; and calcined gypsum products sold, by product. Data are shown quarterly for year to date.
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2014. digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.