http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Shaft design in the Coeur d'Alene mining district, Idaho
results of in situ stress and physical property measurements
by Michael J. Beus and Samuel S. M. Chan.
Report of investigations (United States. Bureau of Mines) ; 8435