http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
copper deposits of the Encampment district, Wyoming
1 online resource (107 pages) : illustrations, maps.
Includes bibliographical references and index.
Spencer, Arthur C. (Arthur Coe), 1871-1964.
Professional paper (Geological Survey (U.S.)) ; no. 25
House document (United States. Congress. House) ; 58th Congress, 2nd session, no. 713