http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Carbonizing properties of West Virginia coals and blends of coals from Alma, Cedar Grove, Dorothy Powellton A, Eagle, Pocahontas and Beckly Beds
1 online resource (167 pages), digital, PDF file
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2017 digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.