http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (68 unnumbered pages) : illustrations.
At head of title: United States Department of the Interior, Bureau of Mines.
As of 05/09/2017, GPO could not validate the distribution status of this title for the FDLP.
Annual report of the Mining Division, fiscal year 1942
Report of investigations (United States. Bureau of Mines) ; 3664