http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Procedures for estimating unit hydrographs for large floods at ungaged sites in Montana
Department of Natural Resources and Conservation.
v, 60 pages : illustrations, maps ; 28 cm.
"U.S. Department of the Interior, U.S. Geological Survey"--Title page verso.
Includes bibliographical references (pages 36-37).
U.S. Geological Survey water-supply paper ; 2420