http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a guide to Proterozoic rocks of Western Montana and adjacent areas
Montana College of Mineral Science and Technology
viii, 311 pages : illustrations (some color), maps ; 28 cm.
Special publication (Montana Bureau of Mines and Geology) ; 94