http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hydrographic manual of the United States Geological Survey
1 online resource (76 pages, 3 pages of plates) : illustrations.
by Edward C. Murphy, John C. Hoyt, and George B. Hollister.
Water-supply and irrigation papers of the United States Geological Survey ; no. 94
Water-supply and irrigation papers of the United States Geological Survey ; 94