http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Erdwiss.FB -- -- GEOLOGY minerals economic -- -- Geology and Economic Minerals of Canada.R.J.W. -- Douglas,scient.ed. - (Ottawa):Geolog.Survey of -- Canada(1970).838 S.m.zahlr.Fig.,Taf.u.Tab. 4° -- (Geological Survey of Canada.Economic Geology. -- Rep.1.) -- -- Ge
Geological Survey of Canada. Economic Geology. Rep. 1