http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Investigation of the W.E. Dunkle coal mine, Costello Creek, Chulitna District, Alaska
1 online resource (9 pages, 8 leaves of plates) : illustrations, maps.
Report of investigations (United States. Bureau of Mines) ; 4360