http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Pacific Slope basins in Oregon and lower Columbia River basin to September 30, 1948
Also available online in PDF format from the U.S. Geological Survey Warehouse (http:/pubs.er.usgs.gov/).
Lower Columbia River Watershed (Or. and Wash.)
Geological Survey (U.S.). Water Resources Division. Portland District.