http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Petrology and tectonic evolution of pre-Tertiary rocks of the Blue Mountains region
1 online resource (vi, 540 pages) : illustrations, maps.
Tracy L. Vallier and Howard C. Brooks, editors.
U.S. Geological Survey professional paper ; 1438
Geology of the Blue Mountains region of Oregon, Idaho, and Washington