http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Coal mine injury and employment experience by occupation, 1972-75
Mining Enforcement and Safety Administration.
1 unnumbered page, 30 pages : illustrations ; 27 cm.
Informational report (United States. Mining Enforcement and Safety Administration) ; 1065